Color has an important effect on mental activities, especially when it has a very close relationship with mood. It can not only make people excited, but also make people quiet. It can also bring people happy or quiet mood. The reason why color can affect the state of mind and mood, because color from the color of nature, blue sea, golden sun, green fields and so on. When you see these colors, you associate them with the feelings and experiences associated with these natural objects, which are the primary influences.