First of all, the color of the inside pages of books should be concise. The colors used in the design of the inner pages of books generally belong to the category of auxiliary colors, mainly to study the juxtaposition relationship between colors and a large number of text information, thus giving readers a beautiful feeling. There are not necessarily many colors, and the superposition effect of many colors will reduce the amount of text information, make people see things in a blur and weaken the visual intensity of text information at a certain spatial distance. Know how to cherish color like gold, and win more with less. According to the principle of psychology, one group of colors spreads faster than many groups of colors, and the relationship between them is inversely proportional. Less colors, clear levels and clear priorities can give people a concise overall effect. From the aesthetic point of view, color should be concise, general and symbolic. From the perspective of economic benefits, using less colors can reduce costs, which is beneficial to both businesses and consumers.

Secondly, we should pay attention to the contrast of colors. In the use of colors, bright colors are common, warm colors and high-purity colors are also easy to see, but the most eye-catching colors are rare because of the lack of contrast. There is a close relationship between the color of book cover and the contrast of background color, such as cold and warm tone, bright gray tone, black and white lightness, shade lightness, size and area, width and width, movement, straightness, flatness, left and right direction, up and down contrast and many other factors can enhance the contrast effect. In addition, contrast color should be used in the background color and the edge treatment of the picture to produce eye-catching effect. In addition, you also need to consider the contrast between the color of the book cover you designed and other books on the shelves of the same kind of books in the same consumer market, which is also an important factor to attract attention.