The numbers symbolized by each color are: black stands for 0, brown stands for 1, red stands for 2, orange stands for 3, yellow stands for 4, green stands for 5, blue stands for 6, purple stands for 7, gray stands for 8, white stands for 9, gold stands for R, the colors represented by the four numbers and the meaning of each number.

The number 255 stands for red.

Specific code in red:

16 hexadecimal code = # FF0000；;

RGB red, green and blue system = (red 255, green 0, blue 0);

CMYK four-color printing system = (cyan 0, magenta 100, yellow 100, black 0);

HSV system = (primary color 0, saturation 100, brightness 100).

The meaning of red:

Red is the color at the end of the long wave in the visible spectrum, with a wavelength of about 625 to 740 nanometers. It is one of the three primary colors of light and psychological primary colors. Red can be mixed with blue (one of the three primary colors of light) to make red, or mixed with yellow to make 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; Infectious.

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 of fire in the five elements is red, and gossip also symbolizes red.