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G.2 Color Names
Determining
the RGB-triple value for anything other than the simplest colors (you
try figuring out esoteric colors like "papaya
whip" or "navajo
white") is not easy. You can go crazy trying to
adjust the RGB triple for a color to get the shade just right,
especially when each adjustment requires loading a document into your
browser to view the result.
To make life easier, the standards define 16 standard color names
that can be used anywhere a numeric color value can be used. For
example, you can make all visited links in the display magenta with
the following attribute and value for the body tag:
<body vlink="magenta">
The color names and RGB values defined in the HTML/XHTML standards
are:
aqua (#00FFFF) | gray (#808080) | navy (#000080) | silver (#C0C0C0) |
black (#000000) | green (#008000) | olive (#808000) | teal (#008080) |
blue (#0000FF) | lime (#00FF00) | purple (#800080) | yellow (#FFFF00) |
fuchsia (#FF00FF) | maroon (#800000) | red (#FF0000) | white (#FFFFFF) |
The popular browsers go well beyond the standard and support the
several hundred color names defined for use in the X Window System.
Note that these color names may contain no spaces; also, the word
"gray" may be spelled
"grey" in any color name.
Those colors marked with an asterisk (*) actually represent a family
of colors numbered one through four. Thus, there are actually four
variants of blue, named "blue1,"
"blue2,"
"blue3," and
"blue4," along with plain old
"blue." Blue1 is the lightest of
the four; blue4 is the darkest. The unnumbered color name is the same
color as the first; thus, blue and blue1 are identical.
Finally, if all that isn't enough, there are 100
variants of gray (and grey), numbered 1 through 100.
"Gray1" is the darkest,
"gray100" is the lightest, and
"gray" is very close to
"gray75."
The extended color names are:
