This clever tool implements an image map to display color codes for the standard palette of 216 colors that are common between Mac and PC platforms.
A page that displays hundreds of colors and their corresponding codes.
This color map looks quite impressive and contains a large selection of colors. There are also links to explanations of Web color and how it applies to different display types.
The difference between these color codes and the others? These ones have stylish names like Periwinkle and Scarlet for that personal touch.