Light waves reflect red, yellow, and blue, and the rods and cones in the eye s retina simultaneously mix and sort these reflected colors into thousands of tints and shades, which work to offer endless possibilities for specific color use. Color is both simple and complex. It means different things to different people in different cultures. No color is seen the same way by any two people. Color is personal and universal, sending messages full of endless variations.
Hot colors project outward and attract attention.
The power of hot colors affect people in many ways, such as increasing blood pressure and stimulating the nervous system. Cold Cold refers to fully saturated blue. At its brightest it is dominating and strong. All hues that contain red are warm. It is the addition of yellow to red that makes warm colors substantially different from hot colors.