This is a chart of 216 "non-dithering" colors. these colors will look like the color you ask for on all browsers and all computer screen resolution settings.

These Colors won't dither. They always give a nice smooth color on web pages and in graphics. The reason is because these are the 216 colors chosen by Windows and MAC operating platforms to make up their palettes of colors. The colors that aren't represented here are the colors that these try to make up by dithering.

The color list comes from a mathematical formula using the shades 00, 33, 66, 99, CC, and FF from hex codes. Using just those 6 hex combinations over red, blue, and green hues, gives us a total of 216 colors that will render perfectly on your screen.