What are the colors of the flags of each country in the Three Kingdoms?

Yuan Shao is red; Cao Cao was first pink and later changed to green; Liu Bei is blue; Sun Wu is purple; Liu Zhang is yellow; Dong Zhuo is blue with pink (the one inserted on Hulao City); Ma Teng is brown; Gongsun Zan is green

Blue border; Liu Biao's flag is similar to Liu Bei's, except that the flag ribbon is a little purple; Yuan Shu's red flag is yellow in the middle; Yan Baihu's white flag is a little black in the center; other forces' flags are all mixed with a variety of colors; no details are given.