What does the fortune-telling red lock mean?

The implication of wearing purple clothes in fortune telling

This sentence comes from the song of Yuan Tiangang, the pioneer of fortune telling in Tang Dynasty.

This life focuses on the 328 line. "Fortune" tells us that in this life, we are upright, honest and talented, and refuse to rest. His six brothers and sisters are very weak, and their ancestors are also very helpless. The final fortune is also very complicated. He won't take money, and he has a pair of hands that are good at robbing money. Don't make money. This life is a spider. He has made several webs and failed. Who knows, he can only get married slowly and surely.

Blue shirt-rotten shirt

Purple robe-the emperor wears a yellow robe; Princes and ministers above the third class wear purple robes; Wear scarlet robes for more than five items, and green and cyan for less than five items; Soldiers wear soap (black); Scholars who have not entered the official career and Shu Ren are all dressed in white robes.