What do you mean, take off the blue robe and put on the red one?

"Take off the blue shirt and put on the red robe", which means promoting to a higher position and making a fortune, and moving from mediocrity to growing prosperity. In ancient times, different colors of clothes represented different identities. Scholars wear white shirts, juren wear green shirts, junior officials wear blue robes, senior officials wear red robes, and the highest officials wear purple robes. Sentence source: From Yuan Tiangang's Song of Yuan Tiangang "My flesh and blood is the most expensive, and I entered the school early. I will be thirty-six, and I will take off my blue shirt and change into a red robe. " The noblest thing in life is to be close to each other and be born in a rich family. When the age is about to enter 36, it is necessary to increase the rank and rank. Color Grades of Ancient Chinese Clothing: In ancient China, colors were divided into positive colors and intermediate colors. Positive color and intermediate color have become a tool to distinguish between high and low, and should not be mixed at all. Positive color refers to five solid colors of cyan, magenta, yellow, white and black, and intermediate color refers to the mixture of five positive colors of magenta (reddish cyan), red (light red), light green (light cyan), purple and flowing yellow (brownish yellow). Confucius once said that "red and purple are not obscene clothes", and red or purple cloth should not be used as casual clothes at home.