Who can wear purple in ancient China?

In the Book of the Old Tang Dynasty, Gao Zongji, the article of the Reform Movement of 1898 in August of the last Yuan Dynasty said this: "All officials in civil and military circles wear purple with three or more grades, four grades are deep, five grades are light, six grades are dark green, seven grades are light green, eight grades are dark green and nine grades are light green."

You can wear purple clothes only if you are above the third class of civil and military officials.

In the traditional culture of China, purple is not a positive color, but a combination of red and blue. About the earliest use of purple. When it was first seen in The Analects of Confucius, The Analects of Confucius Yang Huo stated that "evil purple captured Zhu Ye, evil Zheng Sheng was chaotic and elegant, and evil covered the country". Because of the allusions in The Analects of Confucius, people often compare evil with evil, and compare the following chaos with purple for Zhu. Wang Mang usurped the Han Dynasty. The book "Praise of Han Shu Wang Mang" is entitled "Purple Frog, the rest leap", saying that Wang Mang usurped the Han Dynasty and the purple frog crowed. Scholars in the Qing Dynasty once said that Manchu "wins the positive color, and all the different surnames are kings", which is also using purple to win Zhu.