Exists.
The first time I heard the word "Dusk Mountain Purple" in my memory was when I read Wang Bo's "Preface to Prince Teng's Pavilion", "When the water is gone, the cold pond is clear, and the smoke condenses and the Dusk Mountain is purple." There are hundreds of ancient poems written by the ancients about "Purple Mountains at Dusk", such as Li Bi's "Poetry on Climbing the Xiantai": The platform is newly renovated, and the sky is far away and the mountains are purple; "Chapter": The setting sun hangs on the trees and the mountains are purple at dusk, and I want to take off my clothes when I walk here; Xia Wanchun's "Crying in the Thin Forest": This year's dream breaks the clouds of the nine peaks, and the flags still reflect the purple mountains at dusk, etc. Among them, Wang Bo's poems appeared earliest. Perhaps Wang Bo has intellectual property rights for the name "Dusk Mountain Purple".
Traditional Chinese colors are divided into primary colors and secondary colors. The primary colors are the longitude, including the five colors of "green, red, yellow, white, and black"; the secondary colors are the latitude, including "green, red, "Flowing yellow, green, purple" five colors. Purple is a mixture of red and blue. I have been discussing colors in the internal group these days. A painter friend said that purple is the most difficult color to mix. There are countless shades and tones to choose from, including cooler ones, warmer ones. Some have different proportions of red and blue, so there are various purples, such as lilac purple, rose purple, grape purple, mustard purple, dusk mountain purple, etc.
When the poet started writing, he must have had the image of "the setting sun is shining slantingly, the afterglow is condensing, the smoke is thick, the distant mountains are thin, and the purple air is overwhelming", so he has the image of "the smoke is condensing and the mountains are dusk." The poem "Purple", such a purple color intertwined with red and blue, may also be an imagination of the poet. Speaking of Dusk Mountain Purple, there is an orchid named after "Dusk Mountain Purple". It is said that this poetic name comes from Wang Bo's poem.