What is the special significance and symbol of the combination of black and red?

Red and black always make people feel justice and evil, life and death, sunshine and shadow, noise and silence, radical and conservative. Although the two are extremely opposite, they cannot be described. Using this pair of contradictory colors at the same time is an undeniable classic collocation.

From the physical point of view of color, red and black, black has duality. From the point of view of pigmentation, it is the sum of all colors. From the optical point of view, it is an abstraction and summary of the dark side of the color world. When put together with other colors, it always produces a strong contrast effect.

For example, black and white are a pair of absolutely contrasting colors, one heavy, one light, one bright and one dark, and they have the same colorless property. Another example is black and yellow, which is the most visually striking combination of a pair of TINT. But white and yellow are too thin, and matching with black can only highlight one party's excessive strength or the other party's excessive weakness.

What can compete with such a rich and mysterious color as black should be red, which is also full and quantitative. Red is the longest wavelength and the richest color in the visible spectrum. Its color scale is very long, and it can produce rich changes when mixed with other colors. So the combination of red and black is a contest of equal strength.

Extended information 1. Red is a warm, strong-willed, extroverted and exciting color, and it is a very exciting color. Red is easy to cause people's blood pressure to rise, and it is also easy to make people excited, excited, nervous and impulsive. It is also a color that easily causes people's psychological fatigue. Enthusiasm, liveliness, publicity, excitement and grandeur are easy to inspire courage, but also easy to get angry, and the mood fluctuates greatly. The west regards it as a symbol of sacrifice and war, while the East represents auspiciousness, optimism and celebration. Red also means warning.

Second, black represents profundity, darkness, solemnity, secrecy, mystery and pornography, and is the contrast color of white. There is a feeling of darkness, such as concentration and the combination of center of gravity with other colors. Used in formal occasions in the west.