noun
fading color; fading beauty
Literary noun describing the loss of vividness in color or the decline of physical beauty, often with a poetic or melancholic tone.
秋の庭には衰色の花が寂しく咲いていた。
In the autumn garden, flowers of fading color bloomed forlornly.
彼女は衰色を隠すように化粧を濃くした。
She applied heavy makeup as if to hide her fading beauty.