I do this from time to time (especially when writing CSS), however, color picker is very useful when you're creating GUIs because most colors you need already p

I do this from time to time (especially when writing CSS), however, color picker is very useful when you're creating GUIs because most colors you need already present in the OS, you just need to pick them and apply to your project. Also, with Cocoa I became tired of writing too many things like NSColor *aColor = [NSColor colorWithCalibratedRed:1.000 green:0.810 blue:0.439 alpha:1.000]; Now I can click "Copy declaration" and paste the code. [Before this amazing color picker I used DigitalColor Meter included with Mac OS X, and then my own simple app CocoaColor (http://dchest.posterous.com/cocoacolor http://dchest.posterous.com/cocoacolor).]