When customizing the flag, the message conveyed by the color has a great impact on us. In daily life, food, clothing, housing, transportation and entertainment are closely related to color. Now people pay more attention to color matching. How to use color to express themselves, create personality and make themselves more unique are important parts of understanding color. By understanding color, life will become colorful.

The customized color degree of the flag, referred to as C, can also be said to be the saturation of the color, and the difference between pure and impure colors. Pure color gives full play to its inherent characteristics, in which there is no mixing of black and white, and the color reaching saturation or pure color. That is, when the pure color is mixed with black, grey, white or other colors, the chromaticity will be reduced. In this way, pink, pink blue and pink green are the colors with low chromaticity. Yellow has the highest chromaticity, followed by orange, red, green and purple.