Color has an emotional impact that can delight you or distress you. Colors evoke both pleasant and unpleasant emotions. Your reaction to a particular color will be influenced by your personal experiences. Certain colors will remind you of certain people and events. You may associate colors with certain scents.
Vivid colors stimulate people to activity.
Color has been known to increase productivity in industry, to speed recovery time in hospitals, to cause you to overeat. The passage of time can be over or underestimated depending on the color of a room. Time is perceived as moving more slowly in a red room and more quickly in a blue or green one. The eye actually sees more warm colors than it does cool. Light bright colors expand size while dark cool colors contract.