What is the color relationship between red and blue?

Red and blue are complementary colors, also called contrasting colors. Red is warm and bright. Blue is quiet and elegant, one is like ice and the other is like fire, so it becomes a complementary color. In the color wheel, the colors corresponding to colors are complementary colors, and the color contrast between them is the strongest. In chromatics, a chromatic color has three basic characteristics: hue, purity (also called chroma and saturation) and lightness, which are also called three elements or three attributes of color.

Color is the most formal element that can arouse the aesthetic pleasure of * * *. Color is one of the most expressive elements, and its nature directly affects people's feelings. In chromatics, there are pure basic colors, also known as tricolor. It refers to red, green and blue, and their corresponding wavelengths are 700nm, 546. 1nm and 435.8nm respectively. Blue, green and red are called the three primary colors, which are the three basic colors produced by the direct light emitted by the luminous body. The original light trichromatic light is the three basic light colors obtained by Newton's own invented diffuser (golden pyramid shape) breaking sunlight.