What kind of people do red, yellow, black, blue and green represent in traditional history?

The red face symbolizes loyalty, faithfulness and blood, such as Guan Yu in The Three Kingdoms Opera and Wu Han in Cut the Sutra Hall. Others: satire, which means false good people. Guan Yu's black face is not only serious and unsmiling, but also neutral, representing fierce wisdom. Such as Bao Zheng in Bao Gong Opera; It also symbolizes strength, rudeness and boldness, such as Zhang Fei in the Three Kingdoms Opera, Li Kui jy in the Water Margin Opera and Jiao Zan in Yang Paifeng. White face is treacherous, suspicious and derogatory, representing bravery, such as Cao Cao in the Three Kingdoms Opera and Yan Song in Yan Song. Cao Cao (white face) has a yellow face and is brave and irritable. Like Dian Wei. Blue face shows upright and uninhibited character, such as Ma Wu in "Going to the Roof" and Dou Erdun in "Comic Book". Dou Erdun's purple face is solemn, steady and full of sense of justice, such as Xu in Er Gong and Zhuan Xu in Fishbone Sword. Others: bad complexion, ugly. Zhang He (Sanwazi) has a golden face, which symbolizes strength and solemnity and shows the role of a fairy. Such as Tathagata and Erlang God in a noisy paradise. Dapeng's silver face (gold pictographic face) is treacherous, suspicious or dignified, showing the role of ghosts or gods, such as the wooden coffin in Attack on Tongguan. Green face is brave, reckless and impulsive. Such as: Xu Shiying in Baishui Beach.