What color did the ancients say cyan was?

The ancients said that cyan can probably represent three colors: green mountains on both sides of the strait-green; Shining on you is better than light blue; Although it was still silky black in the morning, it turned into snow black at night. The ancients said that cyan was usually black. In China's Five Elements Theory, cyan is the symbol of wood. In China Chinese, "cyan" also means "black".

Cyan in China's Ancient Prose

"Shi Shiming Cai Bo" said: "Green is innate, just like the color when things are born." The "green" here refers to the tender green peculiar to grass and immature crops.

"Green" can also represent blue in ancient times. Xunzi's exhortation to learn said, "shine on you, shine on you." Indigo (a dark blue dye) is extracted from Polygonum multiflorum Thunb, but its color is darker than Polygonum multiflorum Thunb.

"Green" also refers to black, and "green hair" refers to black hair, which is a metaphor for young people, such as Han Cong, a poet in the Tang Dynasty: "The sun flies and the jade rabbit goes, and the green hair is evergreen." "Green hair" can be compared with black hair, such as Li Bai, a poet in the Tang Dynasty: "You can't see the lovely hair in the bright mirror of the high room, or even though it is silky black in the morning, it turns into snow at night."