Red has become an auspicious color in China for two reasons: First, it is excellent in itself, and it is one of the three primary colors of red, yellow and blue. It can be used as a source of many colors and is naturally superior to other colors. In addition, red is also a part with longer wavelength in visible light, and the longer wavelength is invisible ultraviolet, so red is also a color close to the limit; Secondly, under the impetus of China culture, the earliest red symbolizes the sun, the ancestor of all things, and later red is the representative color of one of the five elements, which is highly regarded by the dynasty as a symbol of imperial power.

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First, the folk worship of the things represented by red In ancient times, people worshipped nature very much, and they were in awe of the things in nature and often worshipped. Red is similar to the color of the sun and fire, and can be used as the representative color of the sun and fire, which naturally gains people's respect. In ancient times, red as a symbol of auspiciousness and happiness was due to the custom of China New Year. At that time, there was a legend that on New Year's Eve, Chinese new year animals would cause disaster and needed to be driven away by fire. Red, which represents fire, naturally becomes a symbol of good luck.

In ancient times, the imperial colors of each dynasty were determined according to the five elements, which included Jin Mu, fire, water and earth, corresponding to the directions of southeast, northwest and middle respectively, and the colors of blue, red, white, black and yellow. Each dynasty used these five colors in turn, such as black for summer, white for business and red for week. In the Han Dynasty and the Ming Dynasty, because the country originated in the south and belonged to fire in the five elements, red was used to represent fire. The Han and Ming Dynasties had a profound influence on the culture of China, and the worship of red has continued to this day.

From the initial respect for the sun, to the worship of dynasties, and then to the deep-rooted customs in modern times, today, the concept that red represents happiness and auspiciousness has penetrated into the life and culture of China people. The red walls and columns of the Forbidden City are solemn, and the red couplets at home are filled with festive celebrations during the New Year. Red eggs distributed to relatives and friends after the birth of a child are the joy of welcoming new students.