What was the ancient elegant name for the color cyan?

The color blue.

From "Xunzi - Counseling Learning"Cloud: "Green, taken from the blue, and blue in the blue." Meaning: Indigo ( dark blue dye) is extracted from Polygonum cuspidatum, but is darker in color than Polygonum cuspidatum.

The color cyan symbolizes strength, hope, simplicity and dignity, and is often used in traditional objects and clothing. Cyan is a uniquely Chinese color and was of great importance in ancient Chinese society.

Blue is a kind of base color, crisp but not flashy, eloquent but not smooth, refreshing but not monotonous. Cyan, green and indigo different wavelengths can be distinguished. Cyan is in the visible spectrum between green and blue color, somewhat similar to the color of the sky.

Cyan in the modern known as:

Cyan in the modern known as green, green conveys the freshness, ideals, hope, growth of the imagery, in line with the service industry, the health care industry's demand, in order to avoid * work eye fatigue, many of the work of the machinery is also the use of green, the general health care institutions, also often used Green to do space color planning that mark medical supplies.

Bright green is a very beautiful, elegant color, it is vibrant, symbolizing life. Green is tolerant, generous and can accommodate almost all colors.

The use of green is extremely broad, whether it is childhood, youth, middle age, or old age, the use of green will never lose its lively, generous. In a variety of paintings, decorations are inseparable from the green, green can also be used as a color of leisure.

Refer to Baidu Encyclopedia - Cyan