Investigation of a Method for Evaluating the Effect of Interior Colors on Emotions

When designing an interior space, it is expected to consider not only the functions required for the space but also the emotions desired by the users in the space. Color plays an important role in evoking specific emotions. There are many studies that have investigated the effect of color on emotion and the effect of color in interior spaces on emotion. However, the difference between the effect of color on emotion and the effect of space color on emotion has not been sufficiently investigated and is not clear. In this study, to clarify the effect of color on emotion in interior spaces, we evaluated the difference in the effect of the same color on emotion with and without furniture using physiological indexes and a questionnaire. As a result, the physiological indexes showed that viewing spatial design images was more comfortable than viewing plain color images, and the arousal level was higher when viewing interior spatial design images. In addition, a comparison between hues showed the same tendency for plain color and spatial design images. The questionnaire evaluation showed that spatial design images and plain color images of the same color gave similar impressions. Thus, spatial design images and plain color images tended to be similar in hue comparison. Therefore, it is possible that the effect of color on emotion has the same effect on spatial design.