I've really been having fun lately, searching the web for great sites that provide inspiring color combos to use in my crafting. I came across this one today: My Create, Ink. Color Lab. This is for all those great Stampin' Up! colors that we have in our stashes.
There's a button labeled "surprise me" that will give you random color palettes each time you click. Some are better than others but it is really fun to see what pops up. I think it's still in the development stages, but it's fun to experiment with, nonetheless.