Who can help me know something about color?

Tone forms the tone of color. A painting is often composed of various tones, and this overall relationship between colors is called "tone". Among them, the main color is the main color or tone color design for the color scheme in the sketch or model stage. This is one of the most effective business designs. When you see an object, the first thing that catches your eye is color, and then the shape, so color is very important in design. Special attention should be paid to: first, printing technology and printing methods; Second, the consideration of popular colors; Third, the characteristics of color; Fourth, according to the object, age, gender and likes and dislikes of the goods; Five, the performance of commodity color characteristics; Sixth, rely on the color matching of lighting; Seven, according to the display effect of color matching; Eight, according to the advertising effect of color matching. Color adjustment refers to decorating the appearance of buildings, vehicles, equipment, machinery, utensils, etc. And use the psychological, physiological and physical functions and attributes of color to improve people's life, work atmosphere and environment to improve work efficiency. It can be divided into two categories: environmental color and safety color. The former, such as cool light blue-green or warm ivory, can rest the eyes; The ceiling is extremely bright or white; The dado is the same color as the wall above, but the color is a little darker. The latter, such as yellow, indicates vigilance, and black stripes indicate collision, tripping and falling in dangerous places. Orange means danger; Green means first aid; Blue indicates repair products, etc. Red indicates fire fighting equipment; White is used to indicate access and rectification, etc. Color Emotion The psychological effect of people when they see color. That is, the emotional changes brought by a certain color to the viewer. Due to the characteristics of color and the psychological state of the viewer, color perception has a general tendency; First, the sense of warmth and coldness. There is a stimulating color that causes excitement, that is, positive color; There is a quiet color that has a calming effect, that is, negative color. The former includes warm colors such as red, purple, orange, yellow, yellow and green, while the latter includes cool colors such as blue-green, blue and blue-purple. Second, the sense of weight. Pale yellow is relative to purple, yellow green and purple blue, and the former feels lighter than the latter; Generally, the color with high lightness is lighter than the color with low lightness. Third, gorgeous and simple. The higher the chroma, the more gorgeous it is, and the lower the chroma, the simpler it is. Fourth, the sense of softness and hardness. Colors containing white and gray are associated with association, and various thoughts and emotions will emerge after seeing colors. The general tendency is as follows: red passion, danger, slight revolutionary orange, jealousy, aversion to yellow light, hope, activity green, peace, security, long fresh blue, calm, intellectual purple, elegant, noble, restless white and white, sacred, unfortunate and ordinary, gloomy, horrible and black, serious, dead and vigorous, which is symbolic because association is fixed in society. The word Lenovo on the right side of the above table is often symbolized by the color on the left. The degree to which colors are recognized in a particular environment. Can clearly identify the color of the graphics painted on the ground, which is called "high visibility". On the other hand, when you can't see clearly, it's called "low visibility". It depends on the hue brightness and chroma difference between the graphic and the background color. The greater the difference between graphics and background color, the higher the visibility. According to the experimental results, the color visibility is: black Huang Tu; Black map on yellow background; Yellow land blueprint; Blue and white map; Black and white map; Blue Huang Tu; Black picture on white background; Red and white map; White and red maps; White map of green space; Green map on white background; Red map of green space; Red background and green map. Color management The management of color quality of industrial products. The contents include material selection, testing, color measurement, judging the color quality of finished products, limiting the allowable range of errors with color samples, color statistics and sorting, etc. Strict color management is very important in the production and application, printing, finishing, dyeing, color TV, color photos and color adjustment of various color materials. Methods Color management in colorimetry (through testing) and color management in field (through using color standards). Qualitative appearance presented by hue and color. Such as red, orange, yellow, green, cyan and purple, which are decomposed by sunlight through a prism. This hue is the main factor that produces the color relationship. Tone forms the tone of color. A painting is often composed of various tones, and this overall relationship between colors is called "tone". The main color is the main color or tone. Complementary colors are also called "complementary colors", "complementary colors" and "contrast colors". If two colors of light (monochromatic light or polychromatic light) are mixed in a proper proportion to produce a white feeling, these two colors are called "complementary colors". For example, red light with a wavelength of 6563 angstrom and green light with a wavelength of 492 1 angstrom, and orange yellow and blue, yellow and purple, that is, any one of the three primary colors is complementary to the other two mixed colors. When complementary colors are subtracted (for example, when pigments are matched, two complementary colors are drawn on the same point of white paper with equal weight), it becomes black. When the complementary colors are juxtaposed, there is a strong contrast in color perception because of their sharp contrast. The red one will feel redder and the green one will feel greener. If the saturation of complementary colors is weakened, they can tend to be harmonious. Pattern color is also called "advertising color". An opaque powder pigment made of plant or mineral pigments and colloidal liquid. After the pattern colors are mixed with each other, various intermediate colors and composite colors can be obtained. It is usually used to draw various patterns and posters. The middle color is also called "secondary color". A color that is a mixture of red, yellow and blue. For example, red and yellow mix into orange, yellow and blue mix into green, and blue and red mix into purple. The mixture of intermediate color and intermediate color is called "re-intermediate color" (multicolor); The secondary colors are mixed into dark gray (including gray). In ancient China, cyan, yellow, red, white and black were positive colors, and other variegated colors were intermediate colors. "Book of Rites Jade Algae" says: "The clothes are in the right color, but in the middle color." Cool colors and warm colors are collectively called cool colors and warm colors. Refers to different colors with different properties, resulting in different color feelings of cold or warm. The physical phenomenon of hue is related to human physiology. Tones with strong luminosity and chroma, such as red, yellow and orange, give people a strong feeling, expand and approach the line of sight, thus producing a warm feeling, which is called "warm color" or "hot color". On the contrary, such as cyan, green, purple and so on have a cold feeling, which is called "cold color" or "cold color" The relationship between cold and warm is comparative. Similar colors refer to tones with the same properties. But there are also shades, such as deep red and light red. Adjacent colors Adjacent colors refer to tones with similar properties. For example, red and orange, orange and yellow, yellow and green, green and blue, blue and purple, purple and red. Contrast color refers to the hue with opposite nature. Its brightness varies greatly, including red and green, yellow and purple, orange and blue. They are complementary colors in each group. When they are juxtaposed, because of their sharp contrast, they will cause a strong sense of color. The red ones will be redder and the green ones will be greener. Color cast belongs to colorless system. Such as black, white, gray, gold and silver. It is also called "remedial color" because it can make the tone play a harmonious role. Pure white and pure black are not easy to find, and the light band does not have this hue, so white is also called "red" and black is also called "ultraviolet color". White-red, orange, yellow, green and cyan-black (infrared) (ultraviolet) saturated colors refer to normal tones. If positive red is the highest saturation, then the saturation of light red and deep red is weak. Sometimes called "chroma". Because it is related to brightness (such as red saturation in strong light and blue saturation in weak light).