In the exhibition of visual art, light and color are important factors used to express emotions. Lighting guides the composition and atmosphere of the general appearance of a picture. Any subtle changes of the lighting can have dramatic changes in the camera. The handling of light and shadow and the present of texture can emphasize the emotions and the disposition of the character these can create particular emotion and atmosphere. The color is a visual language that gives personality and feelings, making a symbol that affects the psychological feelings in human long-term life experience and aesthetic experience.

According to the theory of visual perception, people can use accumulated knowledge and personal experience to integrate a subjective experience, thereby affecting people's thoughts and feelings through external visual sensory stimulation and the perception of the functioning of the system response. This study will probe into the identity of light and colors and its psychological impact on people's vision from the perspective of visual perception, the concluding vision of psychological experience by the public that applies to creations using the art of light and color to place the emotion and atmosphere in the general appearance of a picture, the placement of the general appearance of a picture, and the integrated use of light and color which causes the viewer to have emotional and intellectual resonance. It is also used to express a theme, create an atmosphere and to transfer the role of emotions.