The idea is simple - three colors are used to describe the riddle and you need to select the forth color. As quickly as you can!
One color is used as the background, second color as the color of the text and the text itself is the name of the third color. Figure out and select the color that is not used.

A simple game which requires great perception skills and may tease your brain.

Various levels, including an Endless Mode and Daily Challenge where you can compete with other players around the world!