Cold color and warm color are the physical classification of color based on psychological illusion. The material impression of color is roughly produced by the cold and warm color systems. The long wavelength red light, orange light and yellow light have a sense of warmth, and the secondary light will have a sense of warmth when exposed to any color. On the contrary, purple light, blue light and green light with short wavelength have a cold feeling. In summer, when we turn off the indoor incandescent lamp and turn on the fluorescent lamp, we will have a feeling of dual variables. The same is true for pigments. The use of cold colors on cold food or cold beverage packages will visually make you feel cold about these foods. In winter, changing the curtains in the bedroom to warm colors will increase the warmth of the room.
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The direct psychological effect of color comes from the direct influence of physical light stimulation of color on human physiological occurrence. Psychologists have done many experiments on this. They found that in a red environment, people's pulse will speed up, their blood pressure will rise, and their emotions will be excited and impulsive. In the blue environment, the pulse will slow down and the mood will be calm. Some scientists found that color can affect brain waves. Brain waves are alert to red and relaxed to blue. Since the middle of the 19th century, psychology has shifted from philosophy to science. Psychologists pay attention to the effect of color psychology verified by experiments. Many color theories have made special introductions to this, and these experiences have clearly affirmed the influence of color on human psychology.
In addition to the different feelings of temperature, cold and warm colors will bring us other feelings, such as weight, humidity, etc. For example, warm colors are more important than cold colors; Warm colors have a strong sense of density, and cold colors have a thin sense; In comparison, cold colors have a stronger sense of transparency, while warm colors have a weaker sense of transparency; Cool colors appear moist, warm colors appear dry; Cool colors feel far away, while warm colors feel close. Generally speaking, if you want to make it spacious in a narrow space, you should use a bright cold tone. Because warm colors have a sense of progress and cold colors have a sense of retreat, you can paint warm colors on the two walls of a slender space and cool colors on the two walls near you, so the space will feel more square psychologically.
The above feelings of warmth and coldness are not from the real temperature in physics, but from our visual and psychological association. Generally speaking, people need both warm colors and cold colors in their daily life, and the same is true of color performance.
In addition to the obvious psychological difference between cold and warm colors, the brightness and purity of colors can also cause the illusion of color physical impression. Generally speaking, the weight of color mainly depends on the brightness of color. Dark color gives people a heavy feeling, while light color gives people a light feeling. The changes in purity and lightness give people the impression of soft and hard colors. For example, light bright colors make people feel soft, while dark solid colors have a strong feeling.
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