The relationship between color and mathematics: to establish a mathematical model of anything, we must look for its "invariance" and then describe it with data. Chromology does not explain the essence of color, but replaces color with mathematical description.

The mathematical principle of color perception by human eyes is: the conversion process between visual signals and digital signals. The human eye sees that all colors in nature are reflected and recognized by sunlight (white light). When the sun shines on the leaves, we can see that the leaves are green, because they absorb visible light other than green and reflect green to human eyes.

Color matching

Sky blue and pink: warm collocation, sharp contrast, both are not extreme colors, so they will not bring pressure to the vision, but add a sense of pleasure, which is the most colorful collocation and has a wide range of uses. If you use a pink coat with sky blue jeans, it will look simple and generous.

Green and pink/red: harmonious collocation, natural colors, like pink flowers and light green grass, make people feel particularly relaxed. Can be used in the bedroom, adding a fresh and quiet to the bedroom. If it is paired with red, it will be more vivid and full.