system palette

Rule of Thumb : For best color reproduction on the web, set monitor for "Thousands of Colors" on the Mac and "High Color" in Windows.

Note: UNIX versions of Navigator use a different color palette that the Windows and Macintosh versions.

from
Windows for Mac Users:

The Macintosh-to-Windows Guide

by Cynthia L. Baron & Robin Williams, Peachpit Press, Berkeley, California ©1999
ISBN 0-201-35396-2

The Windows system palette
"Windows really doesn't have a system palette; it only has a starter selection of colors. Any application for Windows can throw out the Windows "system" palette and create its own group of colors, except for the first ten and the last ten colors in the palette (circled, below).The colors in these palette postions must always appear in these exact locations and can never be replaced. If you create an image using all 256 colors but don't include these twenty exact shades, Windows will throw out twenty of the custom colors from your image and replace them with these standard twenty " p. 354

Windows
Circled [in red] are the twenty permanent Windows palette colors in the positions in which they will always appear.



Macintosh
The top 216 colors are used by Netscape and Adobe in the Windows versions of their software.Four sets of color blends [in red].

 

The Mac system palette
"To make a useful palette with enough colors to dither nicely when necessary, Apple devised a logical sequence that uses colors from the widest possible range of hue and brightness."

"The first part of the palette has an assortment of 216 different colors. The bottom portion of the palette has four sets of colors in even steps from light to dark-red, green, blue, and gray." p.355

Netscape and Adobe adaptations of the Mac palette
" ...Netscape used the 216 Macintosh colors to create the palette for its Windows browser, with 13 other special colors for its own logo..."
p.355

"Adobe also uses the basic 216 colors of the Macintosh palette as the default in its Windows applications, which makes transferring graphic files from the Macintosh to Windows consistent and simple." p.355