Abstract
Blue base/Yellow base Color System is a theory of color harmony for practical use which was established by Robert Dorr born in New York City in 1905. In this system a color dictionary by Color Key Program is used as a scale. According to the theory all colors are classified into two groups, either blue base or yellow base. And colors that belong to the same group harmonize with each other while colors from different groups don't. In case of humans, regardless of race, they also can be classified into blue base or yellow base. In this paper, correlation between personal color and his/her favorite color is to be examined.
