National Color Traditional Colors

Quick answer：

National Color, also known as the national color system, is a set of traditional colors that are considered iconic or representative of a nation. In Chinese culture, these colors include red, yellow, and blue, which are deeply rooted in Chinese history and symbolism. Red symbolizes happiness and prosperity, yellow represents the emperor and the heavens, and blue signifies tranquility and wisdom. These colors are often used in various cultural and artistic expressions, such as in traditional Chinese paintings and clothing.