Previous research has revealed color effects in scene recognition and in object recognition by diagnostic tasks but only for particular objects with typical colors, whereas Changizi (2006) showed development of trichromatism in primates in terms of the evolution by computational models. Accordingly, it suggests the importance of face color as a social signal. In our previous study (2009), we found the tendency to typical colors for each emotion: red for anger, bluish colors for sadness, and yellow, orange and pink for joy. In this study, we investigate the color effects on cognition of emotional facial expression in colored schematic faces, which can represent prototypes of emotional facial expression and control the degree of change for each part; eyes and mouth. As a result, consistent colors for each emotional expression facilitated the task performance.