Everyone knows that the perception of a particular color depends on the abilities of our eyes, and the condition of the nervous system. Indeed, if you look on the other hand, each color is a light wave having a certain length and frequency. In other words, man is not only visually perceives any shade, but also activates certain physiological processes in the nervous system. Let us specifically consider, which means, for example, red.So, what does red mean? The red color in psychology refers to the so-called "hot" colors the perception of which requires a significant amount of energy.