chroma

n. 色品, 色品度
【化】 色度

chro.ma

n.（名词）
The aspect of color in the Munsell color system by which a sample appears to differ from a gray of the same lightness or brightness and that corresponds to saturation of the perceived color.
色品，色度：曼塞尔色系中的色图，例如相同明度和亮度的灰色会由于可见色的饱和度不同而不一样

来源：
Greek khrôma [color]
希腊语 khrôma [颜色]