Emperor who likes to wear purple clothes (there is an idiom story related to it)?

According to Han Feizi, Qi Huangong, the leader of the "Five Overlords" in the Spring and Autumn Period, always liked to wear purple clothes, and China people followed suit. At that time, purple cloth was very expensive, and the price of a piece of purple cloth exceeded five pieces of plain cloth. Qi Huangong asked the Prime Minister Guan Zhong, "I like purple very much. This color is very expensive. People in a country like purple very much. What can I do? " Guan Zhong said, "If you want to stop, why not try not to wear purple?" Qi Huangong took the advice and stopped wearing purple clothes. On that day, all ministers stopped wearing purple clothes. The next day, no one in the capital Linzi wore purple clothes. On the third day, the whole state of Qi could not find anyone wearing purple clothes. This is the story of "Qi Huan Fu Zi" in history, from which we can see the leading role of leaders' words and deeds and life style for the broad masses.

The idiom should be: Zhu yěng QíZǐZ not u y and ng QíZǐ.

Explain the ups and downs of metaphor.

The source "Everything is done by Han Feizi. The Foreign Reserve says Left": "Qi Huangong is good at purple, and all countries are purple. At that time, the five elements cannot be purple. " Also, "Zou Jun is good at wearing long tassels, with long tassels on both sides, which is very expensive."