The color series of the Forbidden City

Quick answer：

The color series of the Forbidden City refers to the traditional color scheme used in the construction and decoration of the Imperial Palace in Beijing, China. These colors are deeply rooted in Chinese culture and symbolism. They often include red, yellow, green, blue, and purple, each representing different aspects of Chinese philosophy and aesthetics. Red symbolizes prosperity and happiness, yellow signifies the emperor's power, green represents longevity, blue stands for tranquility, and purple symbolizes nobility.