Color, as human facial expression, different periods of mood will show different expressions, joy, anger, sadness and happiness have its corresponding expression. In the production of posters, but also to take its corresponding color, in order to vividly reflect the type of product qualities, and can give an accurate message to the customer commodity information and product basics. Catering food mentioned food, the first thing that comes to mind is green, the so-called green food, green consumption, that is, its life conveys the idea of a kind of consumption. Green, but also the dominant color of the food industry, different factions of food have different performance of the color. Hot pot, when it comes to hot pot, it will make people think of spicy, passionate, is a strong stimulation of things, then with it is the red color to reflect this feature. Bread and pastries, this kind of food it is the surface of the orange, this color is also the most stimulating appetite color, so with this color performance is more appropriate, in addition to the teal can also be appropriate to join, such as chocolate and so on. Halal food, which belongs to the ethnic minorities have its own inherent color, that is, blue, blue to show its national style. Clothing category of this kind of subject matter is more colorful and expressive, different categories of clothing more different colors to match. Such as children's clothing, the performance of children's things to choose bright, bright colors, highlighting the vivid, lively, lovely feeling. Because children's attention for this color is very strong, and his desire for knowledge will be strengthened with his senses, pink, red, grass green, Hunan, yellow can be used. Sportswear, this type should show the qualities of the movement, so that people have a feeling of jumping at a glance. Aimed at customers are also students and young people mostly, red, yellow and blue are able to show the theme of the color. Suit, this kind is more mature people like, but also more traditional, formal, its performance should be polite and courteous, of course, in the color should pay attention to the stability, without losing the fun, bold and unconstrained. In business and leisure, mature and lively among the most appropriate, the main color to blue, gray, black for the middle of the choice. Of course, it can also be appropriate to use some dazzling color interspersed with them, play a role in embellishing, so that it is not so dull. Middle-aged and elderly clothing, this kind of collocation can not show more colorful, flamboyant, slightly more calm than the color of Western-style can be. Women's clothing category, focusing on highlighting the feminine, youthful, beautiful features, color also requires bright, simple, bright, pink, purple, green and yellow can reflect this feature. Entertainment and leisure of this kind is mainly to highlight the personality, bold, humorous, rebellious, mysterious, crazy ...... selection of color range is also relatively large, can be spontaneous and hair. Can be a variety of, of course, can not make people dazzled. In the tea ceremony will be the traditional Chinese way to show, in order to reflect the traditional qualities of tea, which can be used in black, red, green, teal, orange. Recreation and health care to highlight a little warm feeling inside, reflecting a kind of care, with the color can also use some warm colors as well. Tourism topics, highlighting the sunshine, relaxed, narrow mood, the color is also fresh and elegant, mainly green, red, yellow and blue. Beauty fashion this kind also belongs to the leading trend fashion forefront, it's bold, avant-garde, personality should also be highlighted. Color can not be too flashy and vulgar, as much as possible, more warm colors, increase the emotional component. Pink, purple, black, yellow can be. High-end products of science and technology are more things that reflect a cold feeling, blue is the color inherent in the science and technology industry, but also the most expressive of scientific and technological characteristics of the color, green can also reflect the theme of science and technology green, with the use of red, the effect will be better.