WEB SAFE COLORS

The pigment color system does not work in computers because colors are created on monitors by adding light. RGB is an additive color system, which means that color is added to a black background. In theory, the combination of cyan, magenta and yellow creat black, but the fourth color black in CMYK is needed to produce true black.

In HTML format, colors are exposed as hexadecimal values (#FF0000) or as color names (red). A web-safe color is one that appears unchanged in both Windows and Macintosh systems.

The are 216 colors. Any hexadecimal value that combines the pairs 00, 33, 66, 99, CC, or FF represents a web-safe color.
Dreamweaver uses the 216-color web-safe palette; when selecting a color, the hexadecimal value of that color is selected.

UNIX versions of Netscape Navigator use a different color palette than the
Windows and Macintosh versions. To avoid this, use hexadecimal values that combine the pairs 00, 40, 80, BF, or FF, which produce web-safe colors for SunOS.