The big five personality traits are the best accepted and most commonly used model of personality in academic psychology. The big five come from the statistical study of responses to personality items. Using a technique called factor analysis researchers can look at the responses of people to hundreds of personality items and ask the question "what is the best was to summarize an individual?". This has been done with many samples from all over the world and the general result is that, while there seem to be unlimited personality variables, five stand out from the pack in terms of explaining a lot of a persons answers to questions about their personality: extraversion, neuroticism, agreeableness, conscientiousness and openness to experience. There are many different measures of the big five personality traits. This test uses the Big-Five Factor Markers from the International Personality Item Pool, developed by Goldberg (1992).
The Luscher Color Test, despite the remarkable ease and speed with which it can be administered, is a "deep" psychological test, developed for the use of psychiatrists, psychologists, physicians and those who are professionally involved with the conscious and unconscious characteristics and motivations of others. It is NOT a parlor game, and most emphatically it is not a weapon to be used in a general contest of "one-upmanship."