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<p>Welcome! This is the documentation for GrapeFruit 0.1a3,
last updated August 12, 2013.</p>
<p>See the <a class="reference internal" href="genindex.html"><em>Index</em></a> for a list of the topics.</p>
<span class="target" id="module-grapefruit"></span><div class="section" id="the-color-class">
<h1>The Color class<a class="headerlink" href="#the-color-class" title="Permalink to this headline">¶</a></h1>
<dl class="class">
<dt id="grapefruit.Color">
<em class="property">class </em><tt class="descclassname">grapefruit.</tt><tt class="descname">Color</tt><a class="headerlink" href="#grapefruit.Color" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<p>The grapefruit module contains only the <a class="reference internal" href="#grapefruit.Color" title="grapefruit.Color"><tt class="xref py py-class docutils literal"><span class="pre">Color</span></tt></a> class, which exposes all
the functionalities. It can be used to store a color value and manipulate it,
or convert it to another color system.</p>
<p>If you are only interested in converting you colors from one system to another,
you can store them using regular tuples instead of <a class="reference internal" href="#grapefruit.Color" title="grapefruit.Color"><tt class="xref py py-class docutils literal"><span class="pre">Color</span></tt></a> instances.
You can then use the class static methods to perform the conversions.</p>
<p><a class="reference internal" href="#grapefruit.Color" title="grapefruit.Color"><tt class="xref py py-class docutils literal"><span class="pre">Color</span></tt></a> stores both the RGB and HSL representation of the color.
This makes possible to keep the hue intact when the color is a pure white
due to its lightness.
However, certain operations work only with the RGB values, and might then
lose the hue.</p>
<p>All the operations assume that you provide values in the specified ranges,
no checks are made whatsoever. If you provide a value outside of the
specified ranges, you’ll get some strange results...</p>
<p>The class instances are immutable, all the methods return a new instance
of the <a class="reference internal" href="#grapefruit.Color" title="grapefruit.Color"><tt class="xref py py-class docutils literal"><span class="pre">Color</span></tt></a> class, and all the properties are read-only.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Some operations may provide results a bit outside the specified ranges,
the results are not capped.
This is due to certain color systems having a wider gamut than others.</p>
</div>
<div class="section" id="class-content">
<h2>Class content<a class="headerlink" href="#class-content" title="Permalink to this headline">¶</a></h2>
<ul class="simple">
<li><a class="reference internal" href="#class-constants"><em>Class Constants</em></a><ul>
<li><a class="reference internal" href="#grapefruit.Color.WHITE_REFERENCE" title="grapefruit.Color.WHITE_REFERENCE"><tt class="xref py py-const docutils literal"><span class="pre">Color.WHITE_REFERENCE</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.NAMED_COLOR" title="grapefruit.Color.NAMED_COLOR"><tt class="xref py py-const docutils literal"><span class="pre">Color.NAMED_COLOR</span></tt></a></li>
</ul>
</li>
<li><a class="reference internal" href="#conversion-functions"><em>Conversion functions</em></a><ul>
<li><a class="reference internal" href="#grapefruit.Color.RgbToHsl" title="grapefruit.Color.RgbToHsl"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RgbToHsl()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.HslToRgb" title="grapefruit.Color.HslToRgb"><tt class="xref py py-meth docutils literal"><span class="pre">Color.HslToRgb()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.RgbToHsv" title="grapefruit.Color.RgbToHsv"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RgbToHsv()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.HsvToRgb" title="grapefruit.Color.HsvToRgb"><tt class="xref py py-meth docutils literal"><span class="pre">Color.HsvToRgb()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.RgbToYiq" title="grapefruit.Color.RgbToYiq"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RgbToYiq()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.YiqToRgb" title="grapefruit.Color.YiqToRgb"><tt class="xref py py-meth docutils literal"><span class="pre">Color.YiqToRgb()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.RgbToYuv" title="grapefruit.Color.RgbToYuv"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RgbToYuv()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.YuvToRgb" title="grapefruit.Color.YuvToRgb"><tt class="xref py py-meth docutils literal"><span class="pre">Color.YuvToRgb()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.RgbToXyz" title="grapefruit.Color.RgbToXyz"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RgbToXyz()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.XyzToRgb" title="grapefruit.Color.XyzToRgb"><tt class="xref py py-meth docutils literal"><span class="pre">Color.XyzToRgb()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.XyzToLab" title="grapefruit.Color.XyzToLab"><tt class="xref py py-meth docutils literal"><span class="pre">Color.XyzToLab()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.LabToXyz" title="grapefruit.Color.LabToXyz"><tt class="xref py py-meth docutils literal"><span class="pre">Color.LabToXyz()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.CmykToCmy" title="grapefruit.Color.CmykToCmy"><tt class="xref py py-meth docutils literal"><span class="pre">Color.CmykToCmy()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.CmyToCmyk" title="grapefruit.Color.CmyToCmyk"><tt class="xref py py-meth docutils literal"><span class="pre">Color.CmyToCmyk()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.RgbToCmy" title="grapefruit.Color.RgbToCmy"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RgbToCmy()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.CmyToRgb" title="grapefruit.Color.CmyToRgb"><tt class="xref py py-meth docutils literal"><span class="pre">Color.CmyToRgb()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.RgbToHtml" title="grapefruit.Color.RgbToHtml"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RgbToHtml()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.HtmlToRgb" title="grapefruit.Color.HtmlToRgb"><tt class="xref py py-meth docutils literal"><span class="pre">Color.HtmlToRgb()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.RgbToPil" title="grapefruit.Color.RgbToPil"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RgbToPil()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.PilToRgb" title="grapefruit.Color.PilToRgb"><tt class="xref py py-meth docutils literal"><span class="pre">Color.PilToRgb()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.RgbToWebSafe" title="grapefruit.Color.RgbToWebSafe"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RgbToWebSafe()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.RgbToGreyscale" title="grapefruit.Color.RgbToGreyscale"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RgbToGreyscale()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.RgbToRyb" title="grapefruit.Color.RgbToRyb"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RgbToRyb()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.RybToRgb" title="grapefruit.Color.RybToRgb"><tt class="xref py py-meth docutils literal"><span class="pre">Color.RybToRgb()</span></tt></a></li>
</ul>
</li>
<li><a class="reference internal" href="#instantiation-functions"><em>Instantiation functions</em></a><ul>
<li><a class="reference internal" href="#grapefruit.Color.NewFromRgb" title="grapefruit.Color.NewFromRgb"><tt class="xref py py-meth docutils literal"><span class="pre">Color.NewFromRgb()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.NewFromHsl" title="grapefruit.Color.NewFromHsl"><tt class="xref py py-meth docutils literal"><span class="pre">Color.NewFromHsl()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.NewFromHsv" title="grapefruit.Color.NewFromHsv"><tt class="xref py py-meth docutils literal"><span class="pre">Color.NewFromHsv()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.NewFromYiq" title="grapefruit.Color.NewFromYiq"><tt class="xref py py-meth docutils literal"><span class="pre">Color.NewFromYiq()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.NewFromYuv" title="grapefruit.Color.NewFromYuv"><tt class="xref py py-meth docutils literal"><span class="pre">Color.NewFromYuv()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.NewFromXyz" title="grapefruit.Color.NewFromXyz"><tt class="xref py py-meth docutils literal"><span class="pre">Color.NewFromXyz()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.NewFromLab" title="grapefruit.Color.NewFromLab"><tt class="xref py py-meth docutils literal"><span class="pre">Color.NewFromLab()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.NewFromCmy" title="grapefruit.Color.NewFromCmy"><tt class="xref py py-meth docutils literal"><span class="pre">Color.NewFromCmy()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.NewFromCmyk" title="grapefruit.Color.NewFromCmyk"><tt class="xref py py-meth docutils literal"><span class="pre">Color.NewFromCmyk()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.NewFromHtml" title="grapefruit.Color.NewFromHtml"><tt class="xref py py-meth docutils literal"><span class="pre">Color.NewFromHtml()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.NewFromPil" title="grapefruit.Color.NewFromPil"><tt class="xref py py-meth docutils literal"><span class="pre">Color.NewFromPil()</span></tt></a></li>
</ul>
</li>
<li><a class="reference internal" href="#properties"><em>Properties</em></a><ul>
<li><a class="reference internal" href="#grapefruit.Color.alpha" title="grapefruit.Color.alpha"><tt class="xref py py-attr docutils literal"><span class="pre">Color.alpha</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.whiteRef" title="grapefruit.Color.whiteRef"><tt class="xref py py-attr docutils literal"><span class="pre">Color.whiteRef</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.rgb" title="grapefruit.Color.rgb"><tt class="xref py py-attr docutils literal"><span class="pre">Color.rgb</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.hue" title="grapefruit.Color.hue"><tt class="xref py py-attr docutils literal"><span class="pre">Color.hue</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.hsl" title="grapefruit.Color.hsl"><tt class="xref py py-attr docutils literal"><span class="pre">Color.hsl</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.hsv" title="grapefruit.Color.hsv"><tt class="xref py py-attr docutils literal"><span class="pre">Color.hsv</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.yiq" title="grapefruit.Color.yiq"><tt class="xref py py-attr docutils literal"><span class="pre">Color.yiq</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.yuv" title="grapefruit.Color.yuv"><tt class="xref py py-attr docutils literal"><span class="pre">Color.yuv</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.xyz" title="grapefruit.Color.xyz"><tt class="xref py py-attr docutils literal"><span class="pre">Color.xyz</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.lab" title="grapefruit.Color.lab"><tt class="xref py py-attr docutils literal"><span class="pre">Color.lab</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.cmy" title="grapefruit.Color.cmy"><tt class="xref py py-attr docutils literal"><span class="pre">Color.cmy</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.cmyk" title="grapefruit.Color.cmyk"><tt class="xref py py-attr docutils literal"><span class="pre">Color.cmyk</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.html" title="grapefruit.Color.html"><tt class="xref py py-attr docutils literal"><span class="pre">Color.html</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.pil" title="grapefruit.Color.pil"><tt class="xref py py-attr docutils literal"><span class="pre">Color.pil</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.webSafe" title="grapefruit.Color.webSafe"><tt class="xref py py-attr docutils literal"><span class="pre">Color.webSafe</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.greyscale" title="grapefruit.Color.greyscale"><tt class="xref py py-attr docutils literal"><span class="pre">Color.greyscale</span></tt></a></li>
</ul>
</li>
<li><a class="reference internal" href="#manipulation-methods"><em>Manipulation methods</em></a><ul>
<li><a class="reference internal" href="#grapefruit.Color.ColorWithAlpha" title="grapefruit.Color.ColorWithAlpha"><tt class="xref py py-meth docutils literal"><span class="pre">Color.ColorWithAlpha()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.ColorWithWhiteRef" title="grapefruit.Color.ColorWithWhiteRef"><tt class="xref py py-meth docutils literal"><span class="pre">Color.ColorWithWhiteRef()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.ColorWithHue" title="grapefruit.Color.ColorWithHue"><tt class="xref py py-meth docutils literal"><span class="pre">Color.ColorWithHue()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.ColorWithSaturation" title="grapefruit.Color.ColorWithSaturation"><tt class="xref py py-meth docutils literal"><span class="pre">Color.ColorWithSaturation()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.ColorWithLightness" title="grapefruit.Color.ColorWithLightness"><tt class="xref py py-meth docutils literal"><span class="pre">Color.ColorWithLightness()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.DarkerColor" title="grapefruit.Color.DarkerColor"><tt class="xref py py-meth docutils literal"><span class="pre">Color.DarkerColor()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.LighterColor" title="grapefruit.Color.LighterColor"><tt class="xref py py-meth docutils literal"><span class="pre">Color.LighterColor()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.Saturate" title="grapefruit.Color.Saturate"><tt class="xref py py-meth docutils literal"><span class="pre">Color.Saturate()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.Desaturate" title="grapefruit.Color.Desaturate"><tt class="xref py py-meth docutils literal"><span class="pre">Color.Desaturate()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.WebSafeDither" title="grapefruit.Color.WebSafeDither"><tt class="xref py py-meth docutils literal"><span class="pre">Color.WebSafeDither()</span></tt></a></li>
</ul>
</li>
<li><a class="reference internal" href="#generation-methods"><em>Generation methods</em></a><ul>
<li><a class="reference internal" href="#grapefruit.Color.Gradient" title="grapefruit.Color.Gradient"><tt class="xref py py-meth docutils literal"><span class="pre">Color.Gradient()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.ComplementaryColor" title="grapefruit.Color.ComplementaryColor"><tt class="xref py py-meth docutils literal"><span class="pre">Color.ComplementaryColor()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.TriadicScheme" title="grapefruit.Color.TriadicScheme"><tt class="xref py py-meth docutils literal"><span class="pre">Color.TriadicScheme()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.TetradicScheme" title="grapefruit.Color.TetradicScheme"><tt class="xref py py-meth docutils literal"><span class="pre">Color.TetradicScheme()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.AnalogousScheme" title="grapefruit.Color.AnalogousScheme"><tt class="xref py py-meth docutils literal"><span class="pre">Color.AnalogousScheme()</span></tt></a></li>
</ul>
</li>
<li><a class="reference internal" href="#blending-methods"><em>Blending methods</em></a><ul>
<li><a class="reference internal" href="#grapefruit.Color.AlphaBlend" title="grapefruit.Color.AlphaBlend"><tt class="xref py py-meth docutils literal"><span class="pre">Color.AlphaBlend()</span></tt></a></li>
<li><a class="reference internal" href="#grapefruit.Color.Blend" title="grapefruit.Color.Blend"><tt class="xref py py-meth docutils literal"><span class="pre">Color.Blend()</span></tt></a></li>
</ul>
</li>
</ul>
</div>
<div class="section" id="example-usage">
<h2>Example usage<a class="headerlink" href="#example-usage" title="Permalink to this headline">¶</a></h2>
<blockquote>
<div><p>To create an instance of the grapefruit.Color from RGB values:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">grapefruit</span>
<span class="gp">>>> </span><span class="n">r</span><span class="p">,</span> <span class="n">g</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">0</span>
<span class="gp">>>> </span><span class="n">col</span> <span class="o">=</span> <span class="n">grapefruit</span><span class="o">.</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">g</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span>
</pre></div>
</div>
<p>To get the values of the color in another colorspace:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">h</span><span class="p">,</span> <span class="n">s</span><span class="p">,</span> <span class="n">v</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">hsv</span>
<span class="gp">>>> </span><span class="n">l</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">lab</span>
</pre></div>
</div>
<p>To get the complementary of a color:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">compl</span> <span class="o">=</span> <span class="n">col</span><span class="o">.</span><span class="n">ComplementaryColor</span><span class="p">()</span>
<span class="gp">>>> </span><span class="k">print</span> <span class="n">compl</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(210.0, 1.0, 0.5)</span>
</pre></div>
</div>
<p>To directly convert RGB values to their HSL equivalent:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">h</span><span class="p">,</span> <span class="n">s</span><span class="p">,</span> <span class="n">l</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">RgbToHsl</span><span class="p">(</span><span class="n">r</span><span class="p">,</span> <span class="n">g</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span>
</pre></div>
</div>
</div></blockquote>
</div>
<div class="section" id="class-constants">
<span id="id1"></span><h2>Class Constants<a class="headerlink" href="#class-constants" title="Permalink to this headline">¶</a></h2>
<dl class="data">
<dt id="grapefruit.Color.WHITE_REFERENCE">
<tt class="descclassname">Color.</tt><tt class="descname">WHITE_REFERENCE</tt><a class="headerlink" href="#grapefruit.Color.WHITE_REFERENCE" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<p>The reference white points of the CIE standards illuminants, calculated from
the chromaticity coordinates found at:
<a class="reference external" href="http://en.wikipedia.org/wiki/Standard_illuminant">http://en.wikipedia.org/wiki/Standard_illuminant</a></p>
<p>A dictionary mapping the name of the CIE standard illuminants to their reference
white points. The white points are required for the XYZ <-> L*a*b conversions.</p>
<p>The key names are build using the following pattern: <tt class="docutils literal"><span class="pre"><observer>_<illuminant></span></tt></p>
<p>The possible values for <tt class="docutils literal"><span class="pre"><observer></span></tt> are:</p>
<blockquote>
<div><table border="1" class="docutils">
<colgroup>
<col width="15%" />
<col width="85%" />
</colgroup>
<thead valign="bottom">
<tr class="row-odd"><th class="head">Value</th>
<th class="head">Observer</th>
</tr>
</thead>
<tbody valign="top">
<tr class="row-even"><td>std</td>
<td>CIE 1931 2° Standard Observer</td>
</tr>
<tr class="row-odd"><td>sup</td>
<td>CIE 1964 10° Supplementary Observer</td>
</tr>
</tbody>
</table>
</div></blockquote>
<p>The possible values for <tt class="docutils literal"><span class="pre"><illuminant></span></tt> are the name of the standard illuminants:</p>
<blockquote>
<div><table border="1" class="docutils">
<colgroup>
<col width="9%" />
<col width="13%" />
<col width="78%" />
</colgroup>
<thead valign="bottom">
<tr class="row-odd"><th class="head">Value</th>
<th class="head">CCT</th>
<th class="head">Illuminant</th>
</tr>
</thead>
<tbody valign="top">
<tr class="row-even"><td>A</td>
<td>2856 K</td>
<td>Incandescent tungsten</td>
</tr>
<tr class="row-odd"><td>B</td>
<td>4874 K</td>
<td>Direct sunlight at noon (obsolete)</td>
</tr>
<tr class="row-even"><td>C</td>
<td>6774 K</td>
<td>North sky daylight (obsolete)</td>
</tr>
<tr class="row-odd"><td>D50</td>
<td>5003 K</td>
<td>ICC Profile PCS. Horizon light.</td>
</tr>
<tr class="row-even"><td>D55</td>
<td>5503 K</td>
<td>Compromise between incandescent and daylight</td>
</tr>
<tr class="row-odd"><td>D65</td>
<td>6504 K</td>
<td>Noon daylight (TV & sRGB colorspace)</td>
</tr>
<tr class="row-even"><td>D75</td>
<td>7504 K</td>
<td>North sky day light</td>
</tr>
<tr class="row-odd"><td>E</td>
<td>~5455 K</td>
<td>Equal energy radiator (not a black body)</td>
</tr>
<tr class="row-even"><td>F1</td>
<td>6430 K</td>
<td>Daylight Fluorescent</td>
</tr>
<tr class="row-odd"><td>F2</td>
<td>4230 K</td>
<td>Cool White Fluorescent</td>
</tr>
<tr class="row-even"><td>F3</td>
<td>3450 K</td>
<td>White Fluorescent</td>
</tr>
<tr class="row-odd"><td>F4</td>
<td>2940 K</td>
<td>Warm White Fluorescent</td>
</tr>
<tr class="row-even"><td>F5</td>
<td>6350 K</td>
<td>Daylight Fluorescent</td>
</tr>
<tr class="row-odd"><td>F6</td>
<td>4150 K</td>
<td>Lite White Fluorescent</td>
</tr>
<tr class="row-even"><td>F7</td>
<td>6500 K</td>
<td>Broadband fluorescent, D65 simulator</td>
</tr>
<tr class="row-odd"><td>F8</td>
<td>5000 K</td>
<td>Broadband fluorescent, D50 simulator</td>
</tr>
<tr class="row-even"><td>F9</td>
<td>4150 K</td>
<td>Broadband fluorescent, Cool White Deluxe</td>
</tr>
<tr class="row-odd"><td>F10</td>
<td>5000 K</td>
<td>Narrowband fluorescent, Philips TL85, Ultralume 50</td>
</tr>
<tr class="row-even"><td>F11</td>
<td>4000 K</td>
<td>Narrowband fluorescent, Philips TL84, Ultralume 40</td>
</tr>
<tr class="row-odd"><td>F12</td>
<td>3000 K</td>
<td>Narrowband fluorescent, Philips TL83, Ultralume 30</td>
</tr>
</tbody>
</table>
</div></blockquote>
<dl class="data">
<dt id="grapefruit.Color.NAMED_COLOR">
<tt class="descclassname">Color.</tt><tt class="descname">NAMED_COLOR</tt><a class="headerlink" href="#grapefruit.Color.NAMED_COLOR" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<p>The names and RGB values of the X11 colors supported by popular browsers, with
the gray/grey spelling issues, fixed so that both work (e.g light*grey* and
light*gray*).</p>
<p>Note: For <em>Gray</em>, <em>Green</em>, <em>Maroon</em> and <em>Purple</em>, the HTML/CSS values are used
instead of the X11 ones
(see <a class="reference external" href="http://en.wikipedia.org/wiki/X11_color_names#Color_names_that_clash_between_X11_and_HTML.2FCSS">X11/CSS clashes</a>)</p>
<p>Reference: <a class="reference external" href="http://www.w3.org/TR/css3-iccprof#x11-color">CSS3 Color module</a></p>
</div>
<div class="section" id="conversion-functions">
<span id="id2"></span><h2>Conversion functions<a class="headerlink" href="#conversion-functions" title="Permalink to this headline">¶</a></h2>
<p>The conversion functions are static methods of the <a class="reference internal" href="#grapefruit.Color" title="grapefruit.Color"><tt class="xref py py-class docutils literal"><span class="pre">Color</span></tt></a> class that
let you convert a color stored as the list of its components rather than
as a <a class="reference internal" href="#grapefruit.Color" title="grapefruit.Color"><tt class="xref py py-class docutils literal"><span class="pre">Color</span></tt></a> instance.</p>
<dl class="staticmethod">
<dt id="grapefruit.Color.RgbToHsl">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RgbToHsl</tt><big>(</big><em>r</em>, <em>g</em>, <em>b</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RgbToHsl" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from RGB coordinates to HSL.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">r:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">g:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (h, s, l) tuple in the range:
h[0...360],
s[0...1],
l[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">RgbToHsl</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="go">(30.0, 1.0, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.HslToRgb">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">HslToRgb</tt><big>(</big><em>h</em>, <em>s</em>, <em>l</em><big>)</big><a class="headerlink" href="#grapefruit.Color.HslToRgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from HSL coordinates to RGB.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">h:</th><td class="field-body">The Hue component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">s:</th><td class="field-body">The Saturation component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">l:</th><td class="field-body">The Lightness component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (r, g, b) tuple in the range:
r[0...1],
g[0...1],
b[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">HslToRgb</span><span class="p">(</span><span class="mf">30.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="go">(1.0, 0.5, 0.0)</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.RgbToHsv">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RgbToHsv</tt><big>(</big><em>r</em>, <em>g</em>, <em>b</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RgbToHsv" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from RGB coordinates to HSV.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">r:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">g:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (h, s, v) tuple in the range:
h[0...360],
s[0...1],
v[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">RgbToHsv</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="go">(30.0, 1, 1)</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.HsvToRgb">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">HsvToRgb</tt><big>(</big><em>h</em>, <em>s</em>, <em>v</em><big>)</big><a class="headerlink" href="#grapefruit.Color.HsvToRgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from RGB coordinates to HSV.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">h:</th><td class="field-body">The Hus component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">s:</th><td class="field-body">The Saturation component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">v:</th><td class="field-body">The Value component [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (r, g, b) tuple in the range:
r[0...1],
g[0...1],
b[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">HslToRgb</span><span class="p">(</span><span class="mf">30.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="go">(1.0, 0.5, 0.0)</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.RgbToYiq">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RgbToYiq</tt><big>(</big><em>r</em>, <em>g</em>, <em>b</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RgbToYiq" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from RGB to YIQ.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">r:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">g:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (y, i, q) tuple in the range:
y[0...1],
i[0...1],
q[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">RgbToYiq</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="go">'(0.592263, 0.458874, -0.0499818)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.YiqToRgb">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">YiqToRgb</tt><big>(</big><em>y</em>, <em>i</em>, <em>q</em><big>)</big><a class="headerlink" href="#grapefruit.Color.YiqToRgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from YIQ coordinates to RGB.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">y:</th><td class="field-body">Tte Y component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">i:</th><td class="field-body">The I component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">q:</th><td class="field-body">The Q component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (r, g, b) tuple in the range:
r[0...1],
g[0...1],
b[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">YiqToRgb</span><span class="p">(</span><span class="mf">0.592263</span><span class="p">,</span> <span class="mf">0.458874</span><span class="p">,</span> <span class="o">-</span><span class="mf">0.0499818</span><span class="p">)</span>
<span class="go">'(1, 0.5, 5.442e-007)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.RgbToYuv">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RgbToYuv</tt><big>(</big><em>r</em>, <em>g</em>, <em>b</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RgbToYuv" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from RGB coordinates to YUV.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">r:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">g:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (y, u, v) tuple in the range:
y[0...1],
u[-0.436...0.436],
v[-0.615...0.615]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">RgbToYuv</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="go">'(0.5925, -0.29156, 0.357505)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.YuvToRgb">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">YuvToRgb</tt><big>(</big><em>y</em>, <em>u</em>, <em>v</em><big>)</big><a class="headerlink" href="#grapefruit.Color.YuvToRgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from YUV coordinates to RGB.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">y:</th><td class="field-body">The Y component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">u:</th><td class="field-body">The U component value [-0.436...0.436]</td>
</tr>
<tr class="field-odd field"><th class="field-name">v:</th><td class="field-body">The V component value [-0.615...0.615]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (r, g, b) tuple in the range:
r[0...1],
g[0...1],
b[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">YuvToRgb</span><span class="p">(</span><span class="mf">0.5925</span><span class="p">,</span> <span class="o">-</span><span class="mf">0.2916</span><span class="p">,</span> <span class="mf">0.3575</span><span class="p">)</span>
<span class="go">'(0.999989, 0.500015, -6.3276e-005)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.RgbToXyz">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RgbToXyz</tt><big>(</big><em>r</em>, <em>g</em>, <em>b</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RgbToXyz" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from sRGB to CIE XYZ.</p>
<p>The methods assumes that the RGB coordinates are given in the sRGB
colorspace (D65).</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Compensation for the sRGB gamma correction is applied before converting.</p>
</div>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">r:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">g:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (x, y, z) tuple in the range:
x[0...1],
y[0...1],
z[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">RgbToXyz</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="go">'(0.488941, 0.365682, 0.0448137)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.XyzToRgb">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">XyzToRgb</tt><big>(</big><em>x</em>, <em>y</em>, <em>z</em><big>)</big><a class="headerlink" href="#grapefruit.Color.XyzToRgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from CIE XYZ coordinates to sRGB.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Compensation for sRGB gamma correction is applied before converting.</p>
</div>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">x:</th><td class="field-body">The X component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">y:</th><td class="field-body">The Y component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">z:</th><td class="field-body">The Z component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (r, g, b) tuple in the range:
r[0...1],
g[0...1],
b[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">XyzToRgb</span><span class="p">(</span><span class="mf">0.488941</span><span class="p">,</span> <span class="mf">0.365682</span><span class="p">,</span> <span class="mf">0.0448137</span><span class="p">)</span>
<span class="go">'(1, 0.5, 6.81883e-008)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.XyzToLab">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">XyzToLab</tt><big>(</big><em>x</em>, <em>y</em>, <em>z</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.XyzToLab" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from CIE XYZ to CIE L*a*b*.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">x:</th><td class="field-body">The X component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">y:</th><td class="field-body">The Y component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">z:</th><td class="field-body">The Z component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (L, a, b) tuple in the range:
L[0...100],
a[-1...1],
b[-1...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">XyzToLab</span><span class="p">(</span><span class="mf">0.488941</span><span class="p">,</span> <span class="mf">0.365682</span><span class="p">,</span> <span class="mf">0.0448137</span><span class="p">)</span>
<span class="go">'(66.9518, 0.43084, 0.739692)'</span>
</pre></div>
</div>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">XyzToLab</span><span class="p">(</span><span class="mf">0.488941</span><span class="p">,</span> <span class="mf">0.365682</span><span class="p">,</span> <span class="mf">0.0448137</span><span class="p">,</span> <span class="n">Color</span><span class="o">.</span><span class="n">WHITE_REFERENCE</span><span class="p">[</span><span class="s">'std_D50'</span><span class="p">])</span>
<span class="go">'(66.9518, 0.411663, 0.67282)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.LabToXyz">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">LabToXyz</tt><big>(</big><em>l</em>, <em>a</em>, <em>b</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.LabToXyz" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from CIE L*a*b* to CIE 1931 XYZ.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">l:</th><td class="field-body">The L component [0...100]</td>
</tr>
<tr class="field-even field"><th class="field-name">a:</th><td class="field-body">The a component [-1...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The a component [-1...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (x, y, z) tuple in the range:
x[0...q],
y[0...1],
z[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">LabToXyz</span><span class="p">(</span><span class="mf">66.9518</span><span class="p">,</span> <span class="mf">0.43084</span><span class="p">,</span> <span class="mf">0.739692</span><span class="p">)</span>
<span class="go">'(0.488941, 0.365682, 0.0448137)'</span>
</pre></div>
</div>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">LabToXyz</span><span class="p">(</span><span class="mf">66.9518</span><span class="p">,</span> <span class="mf">0.411663</span><span class="p">,</span> <span class="mf">0.67282</span><span class="p">,</span> <span class="n">Color</span><span class="o">.</span><span class="n">WHITE_REFERENCE</span><span class="p">[</span><span class="s">'std_D50'</span><span class="p">])</span>
<span class="go">'(0.488941, 0.365682, 0.0448138)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.CmykToCmy">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">CmykToCmy</tt><big>(</big><em>c</em>, <em>m</em>, <em>y</em>, <em>k</em><big>)</big><a class="headerlink" href="#grapefruit.Color.CmykToCmy" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from CMYK coordinates to CMY.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">c:</th><td class="field-body">The Cyan component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">m:</th><td class="field-body">The Magenta component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">y:</th><td class="field-body">The Yellow component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">k:</th><td class="field-body">The Black component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (c, m, y) tuple in the range:
c[0...1],
m[0...1],
y[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">CmykToCmy</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.32</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="go">'(1, 0.66, 0.5)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.CmyToCmyk">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">CmyToCmyk</tt><big>(</big><em>c</em>, <em>m</em>, <em>y</em><big>)</big><a class="headerlink" href="#grapefruit.Color.CmyToCmyk" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from CMY coordinates to CMYK.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">c:</th><td class="field-body">The Cyan component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">m:</th><td class="field-body">The Magenta component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">y:</th><td class="field-body">The Yellow component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (c, m, y, k) tuple in the range:
c[0...1],
m[0...1],
y[0...1],
k[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">CmyToCmyk</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.66</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="go">'(1, 0.32, 0, 0.5)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.RgbToCmy">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RgbToCmy</tt><big>(</big><em>r</em>, <em>g</em>, <em>b</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RgbToCmy" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from RGB coordinates to CMY.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">r:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">g:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (c, m, y) tuple in the range:
c[0...1],
m[0...1],
y[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">RgbToCmy</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="go">(0, 0.5, 1)</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.CmyToRgb">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">CmyToRgb</tt><big>(</big><em>c</em>, <em>m</em>, <em>y</em><big>)</big><a class="headerlink" href="#grapefruit.Color.CmyToRgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from CMY coordinates to RGB.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">c:</th><td class="field-body">The Cyan component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">m:</th><td class="field-body">The Magenta component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">y:</th><td class="field-body">The Yellow component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (r, g, b) tuple in the range:
r[0...1],
g[0...1],
b[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">CmyToRgb</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="go">(1, 0.5, 0)</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.RgbToHtml">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RgbToHtml</tt><big>(</big><em>r</em>, <em>g</em>, <em>b</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RgbToHtml" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from (r, g, b) to #RRGGBB.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">r:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">g:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A CSS string representation of this color (#RRGGBB).</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">RgbToHtml</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="go">'#ff8000'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.HtmlToRgb">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">HtmlToRgb</tt><big>(</big><em>html</em><big>)</big><a class="headerlink" href="#grapefruit.Color.HtmlToRgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the HTML color to (r, g, b).</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">html:</th><td class="field-body">the HTML definition of the color (#RRGGBB or #RGB or a color name).</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (r, g, b) tuple in the range:
r[0...1],
g[0...1],
b[0...1]</dd>
<dt>Throws:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">ValueError:</th><td class="field-body">If html is neither a known color name or a hexadecimal RGB
representation.</td>
</tr>
</tbody>
</table>
</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">HtmlToRgb</span><span class="p">(</span><span class="s">'#ff8000'</span><span class="p">)</span>
<span class="go">'(1, 0.501961, 0)'</span>
<span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">HtmlToRgb</span><span class="p">(</span><span class="s">'ff8000'</span><span class="p">)</span>
<span class="go">'(1, 0.501961, 0)'</span>
<span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">HtmlToRgb</span><span class="p">(</span><span class="s">'#f60'</span><span class="p">)</span>
<span class="go">'(1, 0.4, 0)'</span>
<span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">HtmlToRgb</span><span class="p">(</span><span class="s">'f60'</span><span class="p">)</span>
<span class="go">'(1, 0.4, 0)'</span>
<span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">HtmlToRgb</span><span class="p">(</span><span class="s">'lemonchiffon'</span><span class="p">)</span>
<span class="go">'(1, 0.980392, 0.803922)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.RgbToPil">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RgbToPil</tt><big>(</big><em>r</em>, <em>g</em>, <em>b</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RgbToPil" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from RGB to a PIL-compatible integer.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">r:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">g:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A PIL compatible integer (0xBBGGRR).</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'0x</span><span class="si">%06x</span><span class="s">'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">RgbToPil</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="go">'0x0080ff'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.PilToRgb">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">PilToRgb</tt><big>(</big><em>pil</em><big>)</big><a class="headerlink" href="#grapefruit.Color.PilToRgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from a PIL-compatible integer to RGB.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd>pil: a PIL compatible color representation (0xBBGGRR)</dd>
<dt>Returns:</dt>
<dd>The color as an (r, g, b) tuple in the range:
the range:
r: [0...1]
g: [0...1]
b: [0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">PilToRgb</span><span class="p">(</span><span class="mh">0x0080ff</span><span class="p">)</span>
<span class="go">'(1, 0.501961, 0)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.RgbToWebSafe">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RgbToWebSafe</tt><big>(</big><em>r</em>, <em>g</em>, <em>b</em>, <em>alt=False</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RgbToWebSafe" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from RGB to ‘web safe’ RGB</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">r:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">g:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">alt:</th><td class="field-body">If True, use the alternative color instead of the nearest one.
Can be used for dithering.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (r, g, b) tuple in the range:
the range:
r[0...1],
g[0...1],
b[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">RgbToWebSafe</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.55</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">)</span>
<span class="go">'(1, 0.6, 0)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.RgbToGreyscale">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RgbToGreyscale</tt><big>(</big><em>r</em>, <em>g</em>, <em>b</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RgbToGreyscale" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert the color from RGB to its greyscale equivalent</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">r:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">g:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>The color as an (r, g, b) tuple in the range:
the range:
r[0...1],
g[0...1],
b[0...1]</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">Color</span><span class="o">.</span><span class="n">RgbToGreyscale</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.8</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="go">'(0.6, 0.6, 0.6)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.RgbToRyb">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RgbToRyb</tt><big>(</big><em>hue</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RgbToRyb" title="Permalink to this definition">¶</a></dt>
<dd><p>Maps a hue on the RGB color wheel to Itten’s RYB wheel.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">hue:</th><td class="field-body">The hue on the RGB color wheel [0...360]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>An approximation of the corresponding hue on Itten’s RYB wheel.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">RgbToRyb</span><span class="p">(</span><span class="mi">15</span><span class="p">)</span>
<span class="go">26</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.RybToRgb">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">RybToRgb</tt><big>(</big><em>hue</em><big>)</big><a class="headerlink" href="#grapefruit.Color.RybToRgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Maps a hue on Itten’s RYB color wheel to the standard RGB wheel.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">hue:</th><td class="field-body">The hue on Itten’s RYB color wheel [0...360]</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>An approximation of the corresponding hue on the standard RGB wheel.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">RybToRgb</span><span class="p">(</span><span class="mi">15</span><span class="p">)</span>
<span class="go">8</span>
</pre></div>
</div>
</dd></dl>
</div>
<div class="section" id="instantiation-functions">
<span id="id3"></span><h2>Instantiation functions<a class="headerlink" href="#instantiation-functions" title="Permalink to this headline">¶</a></h2>
<p>The instantiation functions let you create a new instance of the <a class="reference internal" href="#grapefruit.Color" title="grapefruit.Color"><tt class="xref py py-class docutils literal"><span class="pre">Color</span></tt></a>
class from the color components using the color system of your choice.</p>
<dl class="staticmethod">
<dt id="grapefruit.Color.NewFromRgb">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">NewFromRgb</tt><big>(</big><em>r</em>, <em>g</em>, <em>b</em>, <em>alpha=1.0</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.NewFromRgb" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on the specified RGB values.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">r:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">g:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">alpha:</th><td class="field-body">The color transparency [0...1], default is opaque</td>
</tr>
<tr class="field-odd field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="mf">1.0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">)</span>
<span class="go">(1.0, 0.5, 0.0, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="mf">1.0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="go">(1.0, 0.5, 0.0, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.NewFromHsl">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">NewFromHsl</tt><big>(</big><em>h</em>, <em>s</em>, <em>l</em>, <em>alpha=1.0</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.NewFromHsl" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on the specified HSL values.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">h:</th><td class="field-body">The Hue component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">s:</th><td class="field-body">The Saturation component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">l:</th><td class="field-body">The Lightness component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">alpha:</th><td class="field-body">The color transparency [0...1], default is opaque</td>
</tr>
<tr class="field-odd field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="go">(1.0, 0.5, 0.0, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="go">(1.0, 0.5, 0.0, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.NewFromHsv">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">NewFromHsv</tt><big>(</big><em>h</em>, <em>s</em>, <em>v</em>, <em>alpha=1.0</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.NewFromHsv" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on the specified HSV values.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">h:</th><td class="field-body">The Hus component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">s:</th><td class="field-body">The Saturation component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">v:</th><td class="field-body">The Value component [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">alpha:</th><td class="field-body">The color transparency [0...1], default is opaque</td>
</tr>
<tr class="field-odd field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsv</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="go">(1.0, 0.5, 0.0, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsv</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="go">(1.0, 0.5, 0.0, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.NewFromYiq">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">NewFromYiq</tt><big>(</big><em>y</em>, <em>i</em>, <em>q</em>, <em>alpha=1.0</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.NewFromYiq" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on the specified YIQ values.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">y:</th><td class="field-body">The Y component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">i:</th><td class="field-body">The I component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">q:</th><td class="field-body">The Q component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">alpha:</th><td class="field-body">The color transparency [0...1], default is opaque</td>
</tr>
<tr class="field-odd field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromYiq</span><span class="p">(</span><span class="mf">0.5922</span><span class="p">,</span> <span class="mf">0.45885</span><span class="p">,</span><span class="o">-</span><span class="mf">0.05</span><span class="p">))</span>
<span class="go">'(0.999902, 0.499955, -6.6905e-005, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromYiq</span><span class="p">(</span><span class="mf">0.5922</span><span class="p">,</span> <span class="mf">0.45885</span><span class="p">,</span><span class="o">-</span><span class="mf">0.05</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">))</span>
<span class="go">'(0.999902, 0.499955, -6.6905e-005, 0.5)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.NewFromYuv">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">NewFromYuv</tt><big>(</big><em>y</em>, <em>u</em>, <em>v</em>, <em>alpha=1.0</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.NewFromYuv" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on the specified YUV values.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">y:</th><td class="field-body">The Y component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">u:</th><td class="field-body">The U component value [-0.436...0.436]</td>
</tr>
<tr class="field-odd field"><th class="field-name">v:</th><td class="field-body">The V component value [-0.615...0.615]</td>
</tr>
<tr class="field-even field"><th class="field-name">alpha:</th><td class="field-body">The color transparency [0...1], default is opaque</td>
</tr>
<tr class="field-odd field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromYuv</span><span class="p">(</span><span class="mf">0.5925</span><span class="p">,</span> <span class="o">-</span><span class="mf">0.2916</span><span class="p">,</span> <span class="mf">0.3575</span><span class="p">))</span>
<span class="go">'(0.999989, 0.500015, -6.3276e-005, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromYuv</span><span class="p">(</span><span class="mf">0.5925</span><span class="p">,</span> <span class="o">-</span><span class="mf">0.2916</span><span class="p">,</span> <span class="mf">0.3575</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">))</span>
<span class="go">'(0.999989, 0.500015, -6.3276e-005, 0.5)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.NewFromXyz">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">NewFromXyz</tt><big>(</big><em>x</em>, <em>y</em>, <em>z</em>, <em>alpha=1.0</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.NewFromXyz" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on the specified CIE-XYZ values.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">x:</th><td class="field-body">The Red component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">y:</th><td class="field-body">The Green component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">z:</th><td class="field-body">The Blue component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">alpha:</th><td class="field-body">The color transparency [0...1], default is opaque</td>
</tr>
<tr class="field-odd field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromXyz</span><span class="p">(</span><span class="mf">0.488941</span><span class="p">,</span> <span class="mf">0.365682</span><span class="p">,</span> <span class="mf">0.0448137</span><span class="p">))</span>
<span class="go">'(1, 0.5, 6.81883e-008, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromXyz</span><span class="p">(</span><span class="mf">0.488941</span><span class="p">,</span> <span class="mf">0.365682</span><span class="p">,</span> <span class="mf">0.0448137</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">))</span>
<span class="go">'(1, 0.5, 6.81883e-008, 0.5)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.NewFromLab">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">NewFromLab</tt><big>(</big><em>l</em>, <em>a</em>, <em>b</em>, <em>alpha=1.0</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.NewFromLab" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on the specified CIE-LAB values.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">l:</th><td class="field-body">The L component [0...100]</td>
</tr>
<tr class="field-even field"><th class="field-name">a:</th><td class="field-body">The a component [-1...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">b:</th><td class="field-body">The a component [-1...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">alpha:</th><td class="field-body">The color transparency [0...1], default is opaque</td>
</tr>
<tr class="field-odd field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromLab</span><span class="p">(</span><span class="mf">66.9518</span><span class="p">,</span> <span class="mf">0.43084</span><span class="p">,</span> <span class="mf">0.739692</span><span class="p">))</span>
<span class="go">'(1, 0.5, 1.09491e-008, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromLab</span><span class="p">(</span><span class="mf">66.9518</span><span class="p">,</span> <span class="mf">0.43084</span><span class="p">,</span> <span class="mf">0.739692</span><span class="p">,</span> <span class="n">wref</span><span class="o">=</span><span class="n">Color</span><span class="o">.</span><span class="n">WHITE_REFERENCE</span><span class="p">[</span><span class="s">'std_D50'</span><span class="p">]))</span>
<span class="go">'(1.01238, 0.492011, -0.14311, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromLab</span><span class="p">(</span><span class="mf">66.9518</span><span class="p">,</span> <span class="mf">0.43084</span><span class="p">,</span> <span class="mf">0.739692</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">))</span>
<span class="go">'(1, 0.5, 1.09491e-008, 0.5)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromLab</span><span class="p">(</span><span class="mf">66.9518</span><span class="p">,</span> <span class="mf">0.43084</span><span class="p">,</span> <span class="mf">0.739692</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="n">Color</span><span class="o">.</span><span class="n">WHITE_REFERENCE</span><span class="p">[</span><span class="s">'std_D50'</span><span class="p">]))</span>
<span class="go">'(1.01238, 0.492011, -0.14311, 0.5)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.NewFromCmy">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">NewFromCmy</tt><big>(</big><em>c</em>, <em>m</em>, <em>y</em>, <em>alpha=1.0</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.NewFromCmy" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on the specified CMY values.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">c:</th><td class="field-body">The Cyan component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">m:</th><td class="field-body">The Magenta component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">y:</th><td class="field-body">The Yellow component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">alpha:</th><td class="field-body">The color transparency [0...1], default is opaque</td>
</tr>
<tr class="field-odd field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromCmy</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="go">(1, 0.5, 0, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromCmy</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="go">(1, 0.5, 0, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.NewFromCmyk">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">NewFromCmyk</tt><big>(</big><em>c</em>, <em>m</em>, <em>y</em>, <em>k</em>, <em>alpha=1.0</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.NewFromCmyk" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on the specified CMYK values.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">c:</th><td class="field-body">The Cyan component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">m:</th><td class="field-body">The Magenta component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">y:</th><td class="field-body">The Yellow component value [0...1]</td>
</tr>
<tr class="field-even field"><th class="field-name">k:</th><td class="field-body">The Black component value [0...1]</td>
</tr>
<tr class="field-odd field"><th class="field-name">alpha:</th><td class="field-body">The color transparency [0...1], default is opaque</td>
</tr>
<tr class="field-even field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromCmyk</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.32</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">))</span>
<span class="go">'(0, 0.34, 0.5, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromCmyk</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.32</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">))</span>
<span class="go">'(0, 0.34, 0.5, 0.5)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.NewFromHtml">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">NewFromHtml</tt><big>(</big><em>html</em>, <em>alpha=1.0</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.NewFromHtml" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on the specified HTML color definition.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">html:</th><td class="field-body">The HTML definition of the color (#RRGGBB or #RGB or a color name).</td>
</tr>
<tr class="field-even field"><th class="field-name">alpha:</th><td class="field-body">The color transparency [0...1], default is opaque.</td>
</tr>
<tr class="field-odd field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHtml</span><span class="p">(</span><span class="s">'#ff8000'</span><span class="p">))</span>
<span class="go">'(1, 0.501961, 0, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHtml</span><span class="p">(</span><span class="s">'ff8000'</span><span class="p">))</span>
<span class="go">'(1, 0.501961, 0, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHtml</span><span class="p">(</span><span class="s">'#f60'</span><span class="p">))</span>
<span class="go">'(1, 0.4, 0, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHtml</span><span class="p">(</span><span class="s">'f60'</span><span class="p">))</span>
<span class="go">'(1, 0.4, 0, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHtml</span><span class="p">(</span><span class="s">'lemonchiffon'</span><span class="p">))</span>
<span class="go">'(1, 0.980392, 0.803922, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHtml</span><span class="p">(</span><span class="s">'#ff8000'</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">))</span>
<span class="go">'(1, 0.501961, 0, 0.5)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="staticmethod">
<dt id="grapefruit.Color.NewFromPil">
<em class="property">static </em><tt class="descclassname">Color.</tt><tt class="descname">NewFromPil</tt><big>(</big><em>pil</em>, <em>alpha=1.0</em>, <em>wref=(0.95043</em>, <em>1.0</em>, <em>1.0889)</em><big>)</big><a class="headerlink" href="#grapefruit.Color.NewFromPil" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on the specified PIL color.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">pil:</th><td class="field-body">A PIL compatible color representation (0xBBGGRR)</td>
</tr>
<tr class="field-even field"><th class="field-name">alpha:</th><td class="field-body">The color transparency [0...1], default is opaque</td>
</tr>
<tr class="field-odd field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference, default is 2° D65.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromPil</span><span class="p">(</span><span class="mh">0x0080ff</span><span class="p">))</span>
<span class="go">'(1, 0.501961, 0, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromPil</span><span class="p">(</span><span class="mh">0x0080ff</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">))</span>
<span class="go">'(1, 0.501961, 0, 0.5)'</span>
</pre></div>
</div>
</dd></dl>
</div>
<div class="section" id="properties">
<span id="id4"></span><h2>Properties<a class="headerlink" href="#properties" title="Permalink to this headline">¶</a></h2>
<p>The properties get the value of the instance in the specified color model.</p>
<p>The properties returning calculated values unless marked otherwise.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">All the properties are read-only. You need to make a copy of the instance
to modify the color value.</p>
</div>
<dl class="attribute">
<dt id="grapefruit.Color.alpha">
<tt class="descclassname">Color.</tt><tt class="descname">alpha</tt><a class="headerlink" href="#grapefruit.Color.alpha" title="Permalink to this definition">¶</a></dt>
<dd><p>The transparency of this color. 0.0 is transparent and 1.0 is fully opaque.</p>
<p><em>This value is not calculated, the stored value is returned directly.</em></p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.whiteRef">
<tt class="descclassname">Color.</tt><tt class="descname">whiteRef</tt><a class="headerlink" href="#grapefruit.Color.whiteRef" title="Permalink to this definition">¶</a></dt>
<dd><p>the white reference point of this color.</p>
<p><em>This value is not calculated, the stored value is returned directly.</em></p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.rgb">
<tt class="descclassname">Color.</tt><tt class="descname">rgb</tt><a class="headerlink" href="#grapefruit.Color.rgb" title="Permalink to this definition">¶</a></dt>
<dd><p>The RGB values of this Color.</p>
<p><em>This value is not calculated, the stored value is returned directly.</em></p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.hue">
<tt class="descclassname">Color.</tt><tt class="descname">hue</tt><a class="headerlink" href="#grapefruit.Color.hue" title="Permalink to this definition">¶</a></dt>
<dd><p>The hue of this color.</p>
<p><em>This value is not calculated, the stored value is returned directly.</em></p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.hsl">
<tt class="descclassname">Color.</tt><tt class="descname">hsl</tt><a class="headerlink" href="#grapefruit.Color.hsl" title="Permalink to this definition">¶</a></dt>
<dd><p>The HSL values of this Color.</p>
<p><em>This value is not calculated, the stored value is returned directly.</em></p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.hsv">
<tt class="descclassname">Color.</tt><tt class="descname">hsv</tt><a class="headerlink" href="#grapefruit.Color.hsv" title="Permalink to this definition">¶</a></dt>
<dd><p>The HSV values of this Color.</p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.yiq">
<tt class="descclassname">Color.</tt><tt class="descname">yiq</tt><a class="headerlink" href="#grapefruit.Color.yiq" title="Permalink to this definition">¶</a></dt>
<dd><p>The YIQ values of this Color.</p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.yuv">
<tt class="descclassname">Color.</tt><tt class="descname">yuv</tt><a class="headerlink" href="#grapefruit.Color.yuv" title="Permalink to this definition">¶</a></dt>
<dd><p>The YUV values of this Color.</p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.xyz">
<tt class="descclassname">Color.</tt><tt class="descname">xyz</tt><a class="headerlink" href="#grapefruit.Color.xyz" title="Permalink to this definition">¶</a></dt>
<dd><p>The CIE-XYZ values of this Color.</p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.lab">
<tt class="descclassname">Color.</tt><tt class="descname">lab</tt><a class="headerlink" href="#grapefruit.Color.lab" title="Permalink to this definition">¶</a></dt>
<dd><p>The CIE-LAB values of this Color.</p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.cmy">
<tt class="descclassname">Color.</tt><tt class="descname">cmy</tt><a class="headerlink" href="#grapefruit.Color.cmy" title="Permalink to this definition">¶</a></dt>
<dd><p>The CMY values of this Color.</p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.cmyk">
<tt class="descclassname">Color.</tt><tt class="descname">cmyk</tt><a class="headerlink" href="#grapefruit.Color.cmyk" title="Permalink to this definition">¶</a></dt>
<dd><p>The CMYK values of this Color.</p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.html">
<tt class="descclassname">Color.</tt><tt class="descname">html</tt><a class="headerlink" href="#grapefruit.Color.html" title="Permalink to this definition">¶</a></dt>
<dd><p>This Color as an HTML color definition.</p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.pil">
<tt class="descclassname">Color.</tt><tt class="descname">pil</tt><a class="headerlink" href="#grapefruit.Color.pil" title="Permalink to this definition">¶</a></dt>
<dd><p>This Color as a PIL compatible value.</p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.webSafe">
<tt class="descclassname">Color.</tt><tt class="descname">webSafe</tt><a class="headerlink" href="#grapefruit.Color.webSafe" title="Permalink to this definition">¶</a></dt>
<dd><p>The web safe color nearest to this one (RGB).</p>
</dd></dl>
<dl class="attribute">
<dt id="grapefruit.Color.greyscale">
<tt class="descclassname">Color.</tt><tt class="descname">greyscale</tt><a class="headerlink" href="#grapefruit.Color.greyscale" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
</div>
<div class="section" id="manipulation-methods">
<span id="id5"></span><h2>Manipulation methods<a class="headerlink" href="#manipulation-methods" title="Permalink to this headline">¶</a></h2>
<p>The manipulations methods let you create a new color by changing an existing
color properties.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">The methods <strong>do not</strong> modify the current Color instance. They create a
new instance or a tuple of new instances with the specified modifications.</p>
</div>
<dl class="method">
<dt id="grapefruit.Color.ColorWithAlpha">
<tt class="descclassname">Color.</tt><tt class="descname">ColorWithAlpha</tt><big>(</big><em>alpha</em><big>)</big><a class="headerlink" href="#grapefruit.Color.ColorWithAlpha" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on this one with a new alpha value.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">alpha:</th><td class="field-body">The transparency of the new color [0...1].</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="mf">1.0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">)</span><span class="o">.</span><span class="n">ColorWithAlpha</span><span class="p">(</span><span class="mf">0.5</span><span class="p">)</span>
<span class="go">(1.0, 0.5, 0.0, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.ColorWithWhiteRef">
<tt class="descclassname">Color.</tt><tt class="descname">ColorWithWhiteRef</tt><big>(</big><em>wref</em>, <em>labAsRef=False</em><big>)</big><a class="headerlink" href="#grapefruit.Color.ColorWithWhiteRef" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on this one with a new white reference.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">wref:</th><td class="field-body">The whitepoint reference.</td>
</tr>
<tr class="field-even field"><th class="field-name">labAsRef:</th><td class="field-body">If True, the L*a*b* values of the current instance are used as reference
for the new color; otherwise, the RGB values are used as reference.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="mf">1.0</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">,</span> <span class="n">Color</span><span class="o">.</span><span class="n">WHITE_REFERENCE</span><span class="p">[</span><span class="s">'std_D65'</span><span class="p">])</span>
</pre></div>
</div>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c2</span> <span class="o">=</span> <span class="n">c</span><span class="o">.</span><span class="n">ColorWithWhiteRef</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">WHITE_REFERENCE</span><span class="p">[</span><span class="s">'sup_D50'</span><span class="p">])</span>
<span class="gp">>>> </span><span class="n">c2</span><span class="o">.</span><span class="n">rgb</span>
<span class="go">(1.0, 0.5, 0.0)</span>
<span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">c2</span><span class="o">.</span><span class="n">whiteRef</span>
<span class="go">'(0.96721, 1, 0.81428)'</span>
</pre></div>
</div>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c2</span> <span class="o">=</span> <span class="n">c</span><span class="o">.</span><span class="n">ColorWithWhiteRef</span><span class="p">(</span><span class="n">Color</span><span class="o">.</span><span class="n">WHITE_REFERENCE</span><span class="p">[</span><span class="s">'sup_D50'</span><span class="p">],</span> <span class="n">labAsRef</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
<span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">c2</span><span class="o">.</span><span class="n">rgb</span>
<span class="go">'(1.01463, 0.490339, -0.148131)'</span>
<span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">c2</span><span class="o">.</span><span class="n">whiteRef</span>
<span class="go">'(0.96721, 1, 0.81428)'</span>
<span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">c</span><span class="o">.</span><span class="n">lab</span>
<span class="go">'(66.9518, 0.43084, 0.739692)'</span>
<span class="gp">>>> </span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">c2</span><span class="o">.</span><span class="n">lab</span>
<span class="go">'(66.9518, 0.43084, 0.739693)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.ColorWithHue">
<tt class="descclassname">Color.</tt><tt class="descname">ColorWithHue</tt><big>(</big><em>hue</em><big>)</big><a class="headerlink" href="#grapefruit.Color.ColorWithHue" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on this one with a new hue.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">hue:</th><td class="field-body">The hue of the new color [0...360].</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">ColorWithHue</span><span class="p">(</span><span class="mi">60</span><span class="p">)</span>
<span class="go">(1.0, 1.0, 0.0, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">ColorWithHue</span><span class="p">(</span><span class="mi">60</span><span class="p">)</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(60, 1, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.ColorWithSaturation">
<tt class="descclassname">Color.</tt><tt class="descname">ColorWithSaturation</tt><big>(</big><em>saturation</em><big>)</big><a class="headerlink" href="#grapefruit.Color.ColorWithSaturation" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on this one with a new saturation value.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">The saturation is defined for the HSL mode.</p>
</div>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">saturation:</th><td class="field-body">The saturation of the new color [0...1].</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">ColorWithSaturation</span><span class="p">(</span><span class="mf">0.5</span><span class="p">)</span>
<span class="go">(0.75, 0.5, 0.25, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">ColorWithSaturation</span><span class="p">(</span><span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(30, 0.5, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.ColorWithLightness">
<tt class="descclassname">Color.</tt><tt class="descname">ColorWithLightness</tt><big>(</big><em>lightness</em><big>)</big><a class="headerlink" href="#grapefruit.Color.ColorWithLightness" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on this one with a new lightness value.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">lightness:</th><td class="field-body">The lightness of the new color [0...1].</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">ColorWithLightness</span><span class="p">(</span><span class="mf">0.25</span><span class="p">)</span>
<span class="go">(0.5, 0.25, 0.0, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">ColorWithLightness</span><span class="p">(</span><span class="mf">0.25</span><span class="p">)</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(30, 1, 0.25)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.DarkerColor">
<tt class="descclassname">Color.</tt><tt class="descname">DarkerColor</tt><big>(</big><em>level</em><big>)</big><a class="headerlink" href="#grapefruit.Color.DarkerColor" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on this one but darker.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">level:</th><td class="field-body">The amount by which the color should be darkened to produce
the new one [0...1].</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">DarkerColor</span><span class="p">(</span><span class="mf">0.25</span><span class="p">)</span>
<span class="go">(0.5, 0.25, 0.0, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">DarkerColor</span><span class="p">(</span><span class="mf">0.25</span><span class="p">)</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(30, 1, 0.25)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.LighterColor">
<tt class="descclassname">Color.</tt><tt class="descname">LighterColor</tt><big>(</big><em>level</em><big>)</big><a class="headerlink" href="#grapefruit.Color.LighterColor" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on this one but lighter.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">level:</th><td class="field-body">The amount by which the color should be lightened to produce
the new one [0...1].</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">LighterColor</span><span class="p">(</span><span class="mf">0.25</span><span class="p">)</span>
<span class="go">(1.0, 0.75, 0.5, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">LighterColor</span><span class="p">(</span><span class="mf">0.25</span><span class="p">)</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(30, 1, 0.75)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.Saturate">
<tt class="descclassname">Color.</tt><tt class="descname">Saturate</tt><big>(</big><em>level</em><big>)</big><a class="headerlink" href="#grapefruit.Color.Saturate" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on this one but more saturated.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">level:</th><td class="field-body">The amount by which the color should be saturated to produce
the new one [0...1].</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">Saturate</span><span class="p">(</span><span class="mf">0.25</span><span class="p">)</span>
<span class="go">(0.875, 0.5, 0.125, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">Saturate</span><span class="p">(</span><span class="mf">0.25</span><span class="p">)</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(30, 0.75, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.Desaturate">
<tt class="descclassname">Color.</tt><tt class="descname">Desaturate</tt><big>(</big><em>level</em><big>)</big><a class="headerlink" href="#grapefruit.Color.Desaturate" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance based on this one but less saturated.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">level:</th><td class="field-body">The amount by which the color should be desaturated to produce
the new one [0...1].</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">Desaturate</span><span class="p">(</span><span class="mf">0.25</span><span class="p">)</span>
<span class="go">(0.625, 0.5, 0.375, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">Desaturate</span><span class="p">(</span><span class="mf">0.25</span><span class="p">)</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(30, 0.25, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.WebSafeDither">
<tt class="descclassname">Color.</tt><tt class="descname">WebSafeDither</tt><big>(</big><big>)</big><a class="headerlink" href="#grapefruit.Color.WebSafeDither" title="Permalink to this definition">¶</a></dt>
<dd><p>Return the two websafe colors nearest to this one.</p>
<dl class="docutils">
<dt>Returns:</dt>
<dd>A tuple of two grapefruit.Color instances which are the two
web safe colors closest this one.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="mf">1.0</span><span class="p">,</span> <span class="mf">0.45</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c1</span><span class="p">,</span> <span class="n">c2</span> <span class="o">=</span> <span class="n">c</span><span class="o">.</span><span class="n">WebSafeDither</span><span class="p">()</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">c1</span><span class="p">)</span>
<span class="go">'(1, 0.4, 0, 1)'</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">c2</span><span class="p">)</span>
<span class="go">'(1, 0.6, 0, 1)'</span>
</pre></div>
</div>
</dd></dl>
</div>
<div class="section" id="generation-methods">
<span id="id6"></span><h2>Generation methods<a class="headerlink" href="#generation-methods" title="Permalink to this headline">¶</a></h2>
<p>The generation methods let you create a color scheme by using a color as the
start point.</p>
<p>All the method, apart from Gradient and MonochromeScheme, have a ‘mode’
parameter that let you choose which color wheel should be used to generate
the scheme.</p>
<dl class="docutils">
<dt>The following modes are available:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">ryb:</th><td class="field-body">The <a class="reference external" href="http://en.wikipedia.org/wiki/RYB_color_model">RYB</a> color wheel,
or <em>artistic color wheel</em>. While scientifically incorrect, it generally
produces better schemes than RGB.</td>
</tr>
<tr class="field-even field"><th class="field-name">rgb:</th><td class="field-body">The standard RGB color wheel.</td>
</tr>
</tbody>
</table>
</dd>
</dl>
<dl class="method">
<dt id="grapefruit.Color.Gradient">
<tt class="descclassname">Color.</tt><tt class="descname">Gradient</tt><big>(</big><em>target</em>, <em>steps=100</em><big>)</big><a class="headerlink" href="#grapefruit.Color.Gradient" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a list with the gradient colors between this and the other color.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">target:</th><td class="field-body">The grapefruit.Color at the other end of the gradient.</td>
</tr>
<tr class="field-even field"><th class="field-name">steps:</th><td class="field-body">The number of gradients steps to create.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A list of grapefruit.Color instances.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c1</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="mf">1.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c2</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="mf">0.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">,</span> <span class="mf">0.0</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c1</span><span class="o">.</span><span class="n">Gradient</span><span class="p">(</span><span class="n">c2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
<span class="go">[(0.75, 0.25, 0.0, 0.75), (0.5, 0.5, 0.0, 0.5), (0.25, 0.75, 0.0, 0.25)]</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.ComplementaryColor">
<tt class="descclassname">Color.</tt><tt class="descname">ComplementaryColor</tt><big>(</big><em>mode='ryb'</em><big>)</big><a class="headerlink" href="#grapefruit.Color.ComplementaryColor" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a new instance which is the complementary color of this one.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">mode:</th><td class="field-body">Select which color wheel to use for the generation (ryb/rgb).</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">ComplementaryColor</span><span class="p">()</span>
<span class="go">(0.0, 0.5, 1.0, 1.0)</span>
<span class="gp">>>> </span><span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">ComplementaryColor</span><span class="p">()</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(210, 1, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.MonochromeScheme">
<tt class="descclassname">Color.</tt><tt class="descname">MonochromeScheme</tt><big>(</big><big>)</big><a class="headerlink" href="#grapefruit.Color.MonochromeScheme" title="Permalink to this definition">¶</a></dt>
<dd><p>Return 4 colors in the same hue with varying saturation/lightness.</p>
<dl class="docutils">
<dt>Returns:</dt>
<dd>A tuple of 4 grapefruit.Color in the same hue as this one,
with varying saturation/lightness.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="gp">>>> </span><span class="p">[</span><span class="s">'(</span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">, </span><span class="si">%g</span><span class="s">)'</span> <span class="o">%</span> <span class="n">clr</span><span class="o">.</span><span class="n">hsl</span> <span class="k">for</span> <span class="n">clr</span> <span class="ow">in</span> <span class="n">c</span><span class="o">.</span><span class="n">MonochromeScheme</span><span class="p">()]</span>
<span class="go">['(30, 0.2, 0.8)', '(30, 0.5, 0.3)', '(30, 0.2, 0.6)', '(30, 0.5, 0.8)']</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.TriadicScheme">
<tt class="descclassname">Color.</tt><tt class="descname">TriadicScheme</tt><big>(</big><em>angle=120</em>, <em>mode='ryb'</em><big>)</big><a class="headerlink" href="#grapefruit.Color.TriadicScheme" title="Permalink to this definition">¶</a></dt>
<dd><p>Return two colors forming a triad or a split complementary with this one.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">angle:</th><td class="field-body">The angle between the hues of the created colors.
The default value makes a triad.</td>
</tr>
<tr class="field-even field"><th class="field-name">mode:</th><td class="field-body">Select which color wheel to use for the generation (ryb/rgb).</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A tuple of two grapefruit.Color forming a color triad with
this one or a split complementary.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c1</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
</pre></div>
</div>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c2</span><span class="p">,</span> <span class="n">c3</span> <span class="o">=</span> <span class="n">c1</span><span class="o">.</span><span class="n">TriadicScheme</span><span class="p">()</span>
<span class="gp">>>> </span><span class="n">c2</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(150.0, 1, 0.5)</span>
<span class="gp">>>> </span><span class="n">c3</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(270.0, 1, 0.5)</span>
</pre></div>
</div>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c2</span><span class="p">,</span> <span class="n">c3</span> <span class="o">=</span> <span class="n">c1</span><span class="o">.</span><span class="n">TriadicScheme</span><span class="p">(</span><span class="mi">40</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c2</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(190.0, 1, 0.5)</span>
<span class="gp">>>> </span><span class="n">c3</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(230.0, 1, 0.5)</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.TetradicScheme">
<tt class="descclassname">Color.</tt><tt class="descname">TetradicScheme</tt><big>(</big><em>angle=30</em>, <em>mode='ryb'</em><big>)</big><a class="headerlink" href="#grapefruit.Color.TetradicScheme" title="Permalink to this definition">¶</a></dt>
<dd><p>Return three colors forming a tetrad with this one.</p>
<dl class="docutils">
<dt>Parameters:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">angle:</th><td class="field-body">The angle to subtract from the adjacent colors hues [-90...90].
You can use an angle of zero to generate a square tetrad.</td>
</tr>
<tr class="field-even field"><th class="field-name">mode:</th><td class="field-body">Select which color wheel to use for the generation (ryb/rgb).</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A tuple of three grapefruit.Color forming a color tetrad with
this one.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">col</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
<span class="gp">>>> </span><span class="p">[</span><span class="n">c</span><span class="o">.</span><span class="n">hsl</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">col</span><span class="o">.</span><span class="n">TetradicScheme</span><span class="p">(</span><span class="n">mode</span><span class="o">=</span><span class="s">'rgb'</span><span class="p">,</span> <span class="n">angle</span><span class="o">=</span><span class="mi">30</span><span class="p">)]</span>
<span class="go">[(90, 1, 0.5), (210, 1, 0.5), (270, 1, 0.5)]</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.AnalogousScheme">
<tt class="descclassname">Color.</tt><tt class="descname">AnalogousScheme</tt><big>(</big><em>angle=30</em>, <em>mode='ryb'</em><big>)</big><a class="headerlink" href="#grapefruit.Color.AnalogousScheme" title="Permalink to this definition">¶</a></dt>
<dd><p>Return two colors analogous to this one.</p>
<dl class="docutils">
<dt>Args:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">angle:</th><td class="field-body">The angle between the hues of the created colors and this one.</td>
</tr>
<tr class="field-even field"><th class="field-name">mode:</th><td class="field-body">Select which color wheel to use for the generation (ryb/rgb).</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A tuple of grapefruit.Colors analogous to this one.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c1</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromHsl</span><span class="p">(</span><span class="mi">30</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">)</span>
</pre></div>
</div>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c2</span><span class="p">,</span> <span class="n">c3</span> <span class="o">=</span> <span class="n">c1</span><span class="o">.</span><span class="n">AnalogousScheme</span><span class="p">()</span>
<span class="gp">>>> </span><span class="n">c2</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(330, 1, 0.5)</span>
<span class="gp">>>> </span><span class="n">c3</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(90, 1, 0.5)</span>
</pre></div>
</div>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c2</span><span class="p">,</span> <span class="n">c3</span> <span class="o">=</span> <span class="n">c1</span><span class="o">.</span><span class="n">AnalogousScheme</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c2</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(20, 1, 0.5)</span>
<span class="gp">>>> </span><span class="n">c3</span><span class="o">.</span><span class="n">hsl</span>
<span class="go">(40, 1, 0.5)</span>
</pre></div>
</div>
</dd></dl>
</div>
<div class="section" id="blending-methods">
<span id="id7"></span><h2>Blending methods<a class="headerlink" href="#blending-methods" title="Permalink to this headline">¶</a></h2>
<dl class="method">
<dt id="grapefruit.Color.AlphaBlend">
<tt class="descclassname">Color.</tt><tt class="descname">AlphaBlend</tt><big>(</big><em>other</em><big>)</big><a class="headerlink" href="#grapefruit.Color.AlphaBlend" title="Permalink to this definition">¶</a></dt>
<dd><p>Alpha-blend this color on the other one.</p>
<dl class="docutils">
<dt>Args:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">other:</th><td class="field-body">The grapefruit.Color to alpha-blend with this one.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance which is the result of alpha-blending
this color on the other one.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c1</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mf">0.2</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c2</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.8</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c3</span> <span class="o">=</span> <span class="n">c1</span><span class="o">.</span><span class="n">AlphaBlend</span><span class="p">(</span><span class="n">c2</span><span class="p">)</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">c3</span><span class="p">)</span>
<span class="go">'(1, 0.875, 0.75, 0.84)'</span>
</pre></div>
</div>
</dd></dl>
<dl class="method">
<dt id="grapefruit.Color.Blend">
<tt class="descclassname">Color.</tt><tt class="descname">Blend</tt><big>(</big><em>other</em>, <em>percent=0.5</em><big>)</big><a class="headerlink" href="#grapefruit.Color.Blend" title="Permalink to this definition">¶</a></dt>
<dd><p>Blend this color with the other one.</p>
<dl class="docutils">
<dt>Args:</dt>
<dd><table class="first last docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">other:</th><td class="field-body">the grapefruit.Color to blend with this one.</td>
</tr>
</tbody>
</table>
</dd>
<dt>Returns:</dt>
<dd>A grapefruit.Color instance which is the result of blending
this color on the other one.</dd>
</dl>
<div class="highlight-python"><div class="highlight"><pre><span class="gp">>>> </span><span class="n">c1</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mf">0.2</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c2</span> <span class="o">=</span> <span class="n">Color</span><span class="o">.</span><span class="n">NewFromRgb</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mf">0.6</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c3</span> <span class="o">=</span> <span class="n">c1</span><span class="o">.</span><span class="n">Blend</span><span class="p">(</span><span class="n">c2</span><span class="p">)</span>
<span class="gp">>>> </span><span class="nb">str</span><span class="p">(</span><span class="n">c3</span><span class="p">)</span>
<span class="go">'(1, 0.75, 0.5, 0.4)'</span>
</pre></div>
</div>
</dd></dl>
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<h3><a href="#">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">The Color class</a><ul>
<li><a class="reference internal" href="#class-content">Class content</a></li>
<li><a class="reference internal" href="#example-usage">Example usage</a></li>
<li><a class="reference internal" href="#class-constants">Class Constants</a></li>
<li><a class="reference internal" href="#conversion-functions">Conversion functions</a></li>
<li><a class="reference internal" href="#instantiation-functions">Instantiation functions</a></li>
<li><a class="reference internal" href="#properties">Properties</a></li>
<li><a class="reference internal" href="#manipulation-methods">Manipulation methods</a></li>
<li><a class="reference internal" href="#generation-methods">Generation methods</a></li>
<li><a class="reference internal" href="#blending-methods">Blending methods</a></li>
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