Each color in a persons field of vision has a neurological effect on them. This is independent of whether or not a person likes that color. Black, white, and navy blue create a neurological response that makes the viewer think of authority, while brown makes the viewer more willing and comfortable to talk. This is why many police uniforms are a combination of navy, white, and black, while psychologist's offices are predominantly brown, with wood and leather decor. Some las enforcement agencies, such as the CHP adopted brown uniforms, so as to exhibit authority less, and hopefully promote people to be more willing to talk to them. Red and yellow promote the creation of adrenaline. This is why some fast food companies use these colors for their decor. Adrenaline will make a hungry person feel more hungry so they will order more. It will also promote dine-in customers to want to get up and do something, meaning they will leave sooner to open more seats for new customers. Orange makes people feel as if others around them are on an equal level to themselves. If you eat while the color pink is within your field of vision, things will taste sweeter. This is why pastry and donut shops, cake make rs, and other confectionary creators usually give you their product on a pink box. Light blue promotes imagination and daydreaming.