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Next: <a href="Line-Styles.html" accesskey="n" rel="next">Line Styles</a>, Up: <a href="Advanced-Plotting.html" accesskey="u" rel="up">Advanced Plotting</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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<hr>
<span id="Colors-1"></span><h4 class="subsection">15.4.1 Colors</h4>
<span id="index-graphics-colors"></span>
<span id="index-colors_002c-graphics"></span>
<p>Colors may be specified in three ways: 1) RGB triplets, 2) by name, or 3) by
HTML notation.
</p>
<dl compact="compact">
<dt><span>RGB triplet</span></dt>
<dd>
<p>An RGB triplet is a 1x3 vector where each value is between 0 and 1 inclusive.
The first value represents the percentage of Red, the second value the
percentage of Green, and the third value the percentage of Blue. For example,
<code>[1, 0, 1]</code> represents full Red and Blue channels resulting in the color
magenta.
</p>
</dd>
<dt><span>short or long name</span></dt>
<dd>
<p>Eight colors can be specified directly by name or by a single character short
name.
</p>
<table>
<thead><tr><th width="21%">Name</th><th width="79%">Color</th></tr></thead>
<tr><td width="21%">‘<samp>k</samp>’, <code>"black"</code></td><td width="79%">blacK</td></tr>
<tr><td width="21%">‘<samp>r</samp>’, <code>"red"</code></td><td width="79%">Red</td></tr>
<tr><td width="21%">‘<samp>g</samp>’, <code>"green"</code></td><td width="79%">Green</td></tr>
<tr><td width="21%">‘<samp>b</samp>’, <code>"blue"</code></td><td width="79%">Blue</td></tr>
<tr><td width="21%">‘<samp>y</samp>’, <code>"yellow"</code></td><td width="79%">Yellow</td></tr>
<tr><td width="21%">‘<samp>m</samp>’, <code>"magenta"</code></td><td width="79%">Magenta</td></tr>
<tr><td width="21%">‘<samp>c</samp>’, <code>"cyan"</code></td><td width="79%">Cyan</td></tr>
<tr><td width="21%">‘<samp>w</samp>’, <code>"white"</code></td><td width="79%">White</td></tr>
</table>
</dd>
<dt><span>HTML notation</span></dt>
<dd>
<p>HTML notation is a string that begins with the character ‘<samp>#</samp>’ and is
followed by either 3 or 6 hexadecimal digits. As with RGB triplets, each
hexadecimal number represents the fraction of the Red, Green, and Blue channels
present in the specified color. For example, <code>"#FF00FF"</code> represents
the color magenta.
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