The first test asks you to choose your favorite tone of gray. The selection of one tone over another is meant to reveal something about each person's personality. The next tests mix swatches of warm and cold colors.
The result of the Color Personality Text is based on a laboratory experiment carried out by Dr. Max Luscher.
It's a bit of a shame that the personality description is given in English, since not everyone will be able to understand what the program is telling them about themselves.