No nonsense tool to convert color codes.
Get your RGB/CMYK on early.
From the greats using colors like “blood of the passionfruit seed orange” come hex numbers like #FF0000. But of course, if you’re reading this at my blog, you’re looking at a color palette based on a shade of blue in a Klee painting.
Nice series of articles on designing with colors, for looks varying from Corporate to Vintage.
Send this thing a link to an image, and it spits out a useful hex color palette.
Sweet css color comparison tool.
Useful color chart with hex codes.
HTML color picker.
html/css color picker with schemes