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<h4 class="subsection">15.4.1 Colors</h4>
<p><a name="index-graphics-colors-1541"></a><a name="index-colors_002c-graphics-1542"></a>
Colors may be specified as RGB triplets with values ranging from zero to
one, or by name. Recognized color names include <code>"blue"</code>,
<code>"black"</code>, <code>"cyan"</code>, <code>"green"</code>, <code>"magenta"</code>,
<code>"red"</code>, <code>"white"</code>, and <code>"yellow"</code>.
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