In the never-ending quest for visual perfection, countless webgurus, mathnerds, and aesthetic wonks have put forward their own color-picking and color-matching tools. These vary wildly in both usefulness and presentation, but Color Scheme by Pixy stands out in my mind as one of the better ones. It displays complimentary colors in a manner that allows you to see each color next to each of the other colors chosen, allows you to pick what method of computing complimentary colors will be chosen, and allows for a variety of color-perception disorders. Go, you crazy Czech, you!

*edit on 2004-11-19: the colorpicker’s URL has changed to http://wellstyled.com/tools/