When we observe a woven fabric made of different colored yarns, we can perceive a color impression as a whole by juxtaposition color mixture. The purpose of the study is to evaluate the warmth and coolness of multicolored patterns of cloth from a whole color impression of multicolored patterns by applying the logic of juxtaposition color mixture. Samples of juxtaposition color mixture are made by using software that can simulate various color patterns on woven fabrics. By using small pixels that are thought to optically fuse on a CRT display, it was confirmed that the hue angle of juxtaposition color mixture is the average of the hue angles of the original colors. The average of the absolute values of hue angles (| h |) for all pixels in the region of the image set at 512 × 512 pixels is obtained for all samples by using image analysis. Warm, neutral and cool colors are classified by | h |. The warmth and coolness of multicolored patterns of 20 kinds of cloth are evaluated by 30 female students, according to the rating-scale method, and the relation between their sensory-evaluation values and | h | is examined. It is concluded that warm, neutral and cool color images of multicolored patterns of cloth can be evaluated by | h |.