What does red symbolize?

Red represents auspiciousness, cheerfulness, enthusiasm, boldness, passion and fighting spirit.

In many countries and some ethnic groups, red has the function of exorcism. For example, the walls of many palaces and temples in ancient China are red, and officials, bureaucrats and costumes are mostly red, that is, "doors" and "Zhu Yi"; In the traditional culture of China, the color corresponding to fire in the five elements is red, and divination in gossip also symbolizes red;

Because red is easy to attract people's attention, many warning signs are represented by red words or images. For example, in traffic lights, red means stop; Red is also regarded as a symbol of bloodshed, danger and terror; Red is often used to symbolize revolution and leftism in politics, and communist countries are used to represent communism.

Extended data red can be mixed with blue (one of the three primary colors of light) into red, or mixed with yellow into orange.

The complementary color of red is cyan. Red is one of the three primary colors of light. It can be mixed with green and blue to produce any color. Red is the color at the end of the long wave in the visible spectrum, which excites the observer through energy. The wavelength is about 6 10 to 750 nm, which is similar to the color of fresh blood. Ordinary people can't see the rays with longer wavelength than red, which are generally called infrared rays.

Red is positive and optimistic, and the mood fluctuates greatly; Sincere and proactive, joking regardless of occasion; Good at expressing and neglecting to fulfill promises; It's contagious. This mountain looks higher than that one.

References:

Baidu Encyclopedia-Red