Color psychology is the study of hues as a cognitive influence on emotions and ultimately human behavior. Color does not affect each person the same. Age, gender, and culture are all factors that affect how people perceive a color. Even something as unique as a sensory connotation between a person and past experience can have an impact.
The retina in your eye is covered with millions of light-sensitive cells. When you look at a color, these little light receptors, some shaped as rods and others as cones, within your eye translate the light reflected from the object in the form of color by sending nerve impulses to the part of your brain called the hypothalamus. The hypothalamus then sends signals to the pituitary gland, which in return transmits signals onto the thyroid gland.
The latter then prompts the release of hormones. This is the reason why we have specific emotions that relate to a specific color. We'll dig deeper into color and emotions a bit later. Let's first look...