In recent years, various displays are being used for different purposes. Viewing conditions are also diverse, for example, seeing digital color images or movie on cellular phone, LCD, plasma display, LC projector, or LED display indoor or outdoors. Therefore, an appropriate technique is required to design colors of contents according to the kinds of display and /or viewing environment. In this ... [Show full abstract] study, we investigated the effects of lightness contrast and metric chroma on the KANSEI evaluation of color images using SD (semantic differential) method for three different image sizes. Results showed that psychophysical evaluations increased or decreased monotonously with contrasts, while preferential evaluations showed peaks at moderate contrast.