【Abstract 】： People know the world through organs， 80% of which comes from vision. The use and control of color is not only a major factor in functionality， but also an important means of aesthetics.Colors create a variety of emotions and have prominent bodies. The colour and lustre of different material will produce reaction in human psychology， bring about the association of people.

【Key word】：Interior color； interior space；Spatial vision

Color and part of our life， beautify the environment， act on our mood， life is enriched by color. Color is the soul of the interior design in the space is the least costly creation effect of most outstanding elements， change a space style， change its color collocation is the most time-saving， different colors can give a new look. Ruskin once said that color sense is as important to interior design as color is to painters. Every indoor space has a theme. The atmosphere is composed of all the elements in the space. It includes interior materials， construction techniques， furniture， furnishings and other design elements， forming the interior sound， lighting， color， shape harmony resonance， to meet the user's use and spiritual demands.

The relationship between color and space

The color design is a part of the interior space design， space light color and natural color decoration materials， various elements in interior space are color， these colors are the colors used in the space in the system. The color matching of the system determines the beauty， comfort and function of the space.

The relationship between spatial function and color

There are different functions in interior space， and the choice of colors is also distinguished. The ultimate goal of indoor environment is designed to make the material and spirit are better to enjoy， so the designer must understand people for environment cognition， collocation more rational use of various color characteristics， to enhance the application of color in the space.

Color itself has a language， such as red is warm and impulsive， stimulating the human retina very active， can improve muscle function and promote blood circulation， he is often used to express vitality， active and so on. Green represents the life， reminiscent of plants， makes people feel relaxed and relaxed. Blue has a calming effect. Different colors are used in different functions of space， and the proportion of different colors in space also leads to the change of the spatial function.

The relationship between spatial scale and color

Through the analysis of the actual case， it is found that the most traffic accidents each year are blue， followed by green， gray， white， red and black. Blue gives a visual illusion， but one feels that the car looks far away from the actual distance. Many facts reflect that one problem is that color is a progressive color and a fading color. Use color to adjust the scale relationship in space. You can use it to adjust some small space on the actual scale， and use color to make the space look more spacious.The role of color in spatial scale is also reflected in the spatial scope. Colors vary in hue and lightness， so that the color itself becomes varied. In the same space， this feature can be used to create different scales and make space change.

The influence of interior space color on human psychology

With the further study of color， the color gradually reflects the inner spiritual rhythm of people. When a man enters a space， the first thing he feels is the color in the space. The different visual perception produced by different colors has obvious influence on people.

The different color also showed different degrees of reaction， with red stimulation and excitement of the nervous system， enhance the role of blood circulation， but excessive use， also can let a person produce anxiety and emotional stress； orange can produce energy， induce appetite， help stem the absorption of calcium， conducive to the recovery and to keep healthy， suitable for entertainment and catering and other places； blue can reduce pulse， adjust the balance， can reduce stress.

In the different time and place， with the same color to decorate different space， two people produce the feeling also has the difference. Different environment， different growth environment， living habits， education and other differences have also created people's feelings about the color， and the experience of the United States is also different.

According to the study， the newborn's perception of color is weak， and as they age， their perception of color is stronger， which indirectly explains why babies like bright colors.

The influence of color on human psychology can also be caused by regional culture. Different regional cultures make different aesthetic attitudes. Moreover， different social thoughts and material life will affect the aesthetic level. Designers also need to have a thorough understanding of the local culture and humanities， so that they can design works that conform to the local aesthetic.

The importance of color to space

Color is the expression of a decent indoor aesthetic design of the important means， if used properly， often played a rich style， emphasizes its function， and can fully express the different indoor atmosphere and character， also can reflect the occupants sentiment. The arrangement of interior colors and the arrangement of colors on block surfaces. It is embodied in the use of hue， color block and light shade.

Color plays an extremely important role in the whole indoor environment. Without any inch， there will be no influence on our life. With its rich color relationship， it adjusts people's psychology and emotion， stimulates people's imagination， and advances their efforts.