Warm and Cool Colors

Colors on opposite sides of the color wheel give opposing feelings. The warm colors; reds, and yellows, are often associated with fire and sun, which suggest warmth. On the other side, cool colors; blues and greens, are often associated with water, sky, and spring, which suggest coolness. Psychologically, cool colors are said to be calming, whereas warm colors energize. Optically, cool colors appear to recede, and warm colors give the impression of being closer.