This is a Mac OS X app that demonstrates the use of my CattailArtNSColor class which can be found at: http://cattail.nu/mac/NSColor/. It generates color schemes based on the art concepts of complement, split complement, triad, tetradic, analogous, value, saturation, and chromatic colors. The colors reference their Hex/RGB, HSB/HSV, and decimal values. Additionally, it generates syntax-correct Objective C / Cocoa code for NSColor, NSArray, and NSView's drawRect method. See the screenshot below.
CattailArtNSColorDemo.app.zip - Application
CattailArtNSColorDemo.zip - XCode Source Code Project