Why are the auspicious colors of China people red and yellow? From the original place?

Red symbolizes auspiciousness and happiness among people. In traditional customs, color culture is more abundant. Yellow is the color of the emperor, and the main buildings such as palaces, countries and temples are mostly yellow; Yellow is also considered as an otherworldly color and is worshipped by Buddhism. The monk's costume is yellow, and the temple is yellow. Red is one of China people's favorite colors, and it is an indispensable color for New Year holidays, festive occasions and gatherings of relatives and friends in China. Purple is auspicious and solemn, and there is a folk saying that "painting a beam with a purple swallow, flying mud across the street". White is the color of strong mourning. People in China only wear white clothes when they are in trouble, but plain clothes, Su Shang and Su Guan still do.