The purpose of this research was to evaluate the harmony of colors of the traditional Korean skirt and jacket. 3 colors of jacket and 6 colors of skirt were combined by 4 kind of color`s tone. The Korean women college students and the American women college students (University of Wisconsin-Madison) were selected to evaluate the harmony of colors. It could be supposed that the different evaluation were caused by their different cultural backgrounds. The results of the research can be summarized as follows. When colors were combined with four tone(vivid, light, dull and dark), American students evaluated the same colors of red skirt and red jacket, green skirt and green jacket as harmonized coloration. But Korean students thought they were not harmonized. The yellow colors of jacket and the similar colors of red skirt were evaluated as harmonized by both Korean and American students. They evaluated the green jacket and the red skirt of contrast color as harmonized. The different tone of color caused the different evaluation of harmony of colors by both Korean and American students.