This has been around for awhile, but I still find myself using it when I attempt to step over into the darkside. The dark side being design. Actually I like design, it is what I started out doing, like anything, if you don’t do it everyday you get a little rusty. I have been staring at code so much lately I only see in a few colors. black and white, with a few colors sprinkled here and there for methods and properties. That is why this tool comes in very handy when you are trying to design something with complementary colors (check it out, no u in “colour”, for my next trick I will pull a feather out of my hat and call it macoroni). Simply enter your RGB value or better yet, a hex value and you are presented with 16 colors that work with your entered value. Even better you can lighten or darken the results and the colors remain complimentary to your original color. This tool has saved many of late night design headaches when I can’t bug my real designer friends. Make sure to bookmark this one, you’ll thank me for it.

http://www.colorschemer.com/online.html