The Lüscher color test is a psychological test invented by Dr. Max Lüscher in Basel, Switzerland.Max Lüscher believed that sensory perception of color is objective and universally shared by all, but that color preferences are subjective, and that this distinction allows subjective states to be objectively measured by using test colors. Lüscher believed that because the color selections are guided in an unconscious manner, they reveal the person as they really are, not as they perceive themselves or would like to be perceived. The Lüscher color test is a psychological test invented by Dr. Max Lüscher in Basel, Switzerland.Max Lüscher believed that sensory perception of color is objective and universally shared by all, but that color preferences are subjective, and that this distinction allows subjective states to be objectively measured by using test colors. Lüscher believed that because the color selections are guided in an unconscious manner, they reveal the person as they really are, not as they perceive themselves or would like to be perceived. Lüscher believed that personality traits could be identified based on one's choice of color. Therefore, subjects who select identical color combinations have similar personalities. In order to measure this, he conducted a test in which subjects were shown 8 different colored cards and asked to place them in order of preference. Colors are divided between 'basic' (blue, yellow, red, green) and 'auxiliary' (violet, brown, grey, and black).