The preferred color reproduction of flesh color was surveyed for 10's to 60's observers in Japan and South Korea to investigate the influence of the regional effects upon it for all generations. The mean Chroma ( C^*_ab ) of the flesh colors accepted by 50% or more of the Korean observers was higher than that of accepted by the Japanese observers in all generation. The mean hue-angle ( h_ab ) of the flesh colors accepted by the Korean observers was in the direction of yellow, compared with that accepted by the Japanese observers. The mean L ^* value of the Japanese observers was significantly higher than the Korean observers in all generation. The elderly observers (40's and over) accepted more pinkish flesh colors than the young observers (20's and under) in the both countries. The results showed that the preferred flesh color were different between Japan and Korea for all generations and that a certain tendency was observed in the difference.These suggest that preferred flesh colors are influenced by the regional and cultural factors. The common age dependence observed in the two countries could be refered to the physiological factor, such as crystalline lens browning.