Taboo about Colors in China

In China, white is the color of mourning and death. Chinese people call wedding "red matters", while funerals "white matters". During a funeral, mourning dress, mourning hat, mourning shoes are unanimously white. Hence the white turns into fierce color in the daily life, which causes fear and disgust. In traditional opera, "white face "symbolizes betrayal and duplicity. On stage the role of Cao Cao's face is white.
In Chinese culture, white and black make people think of white and black ghosts in the underworld who hook out people's soul when they die. In modern times, influenced by foreign cultures, people begin to twine black weeds around their arms at funerals. So similar to white, black is also associated with death and misfortune. In modern times, black is associated with committing crimes and breaking law etc.
In Chinese culture, it's a taboo for a male to wear a green hat. When a woman makes her husband a cuckold by committing adultery, her husband is said to "wear a green hat". This meaning comes from Tang Dynasty, during which time, green was used as a sign of punishment in law. In Ming Dynasty, Zhu Yuanzhang stipulated that men of prostitute's family must wear green turban.
In China, the ancient Mongols were keen on the color blue, they call their country "blue Mongolian". In Chinese, blue has a few symbolic meanings.
In China, yellow is associated with sex. However, in ancient times Yellow is the symbol of Chinese emperor, representing highly respectable, the divine right of kings, sacred and inviolable power. Yellow, the royal color used by the emperors, represents sacred and inviolable power, divine right and authority. And commoners were not allowed to wear yellow until modern times. In Ming and Qing Dynasties, the roofs of the Imperial Palace, Royal Ancestral Temple and other royal buildings were al yellow. Yellow is also given the meaning of fairness, the five stars of the Five-Starred Red flag, the national flag of the People's Republic of China, are also yellow.