Color perspective is a method of spatial expression using a psychological technique with color and visual effect. Color can be broadly divided into warm and cold colors. Warm colors such as red and yellow convey a feeling of compression, of being propelled forward. Conversely, cold colors such as blue give the impression of being drawn back. By using the visual and psychological qualities that these colors convey to humans, spatial expression such as near and far can be created by changing colors and contrasts.
As a specific example, when using this method to paint a landscape with towering deep green mountains, the mountains in front would be painted in green with a tinge of yellow to give them warmth but the warm colors would fade while painting the mountains further back until reaching a cold blue color to depict depth. This method, incidentally, is also part of aerial perspective.