The Additive Color Test

The Additive Color Test is a game where you attempt to guess the RGB or HSV components for a sequence of 10 colors shown on the screen.

It's a very simple game, and can be used to make you more familiar to the RGB and HSV color schemes so that you won't have to look up colors all the time while e.g. programming.

When the game is over you're presented with some statistics of your performance.