Solarized is a sixteen color palette (eight monotones, eight accent colors) by Ethan Schoonover designed for use with terminal and gui applications.
Business logos sorted by hue.
Blend colors with different modes like multiply, overlay, and dodge.
Using HSLa as an alternative to RGBa in color declarations.
Over 5 millions colors named.
Twitter profile designer by COLOURlovers.
[Color picker control](http://developer.yahoo.com/yui/colorpicker/)
: Yahoo! UI Library’s DHTML visual interface for color selection.