Grey hair isn't a color, it's a lack of color.

白发不是一种颜色，而是失去颜色。

Goldalyn's success surprised many Kenyans because she has albinism, a genetic condition that causes a pink coloring in the eyes and a lack of color in the skin or hair.

戈达琳取得优异成绩让很多人倍感惊讶，因为她患有白化病，而这种基因会造成眼睛变成粉色、皮肤和头发褪色。

You can talk about colors or the lack of colors, point of view, the kind of art (painting, calligraphy, sculpture), the artwork's connection with history and society, and so on.

你可以谈论颜色或缺少颜色、观点、艺术的种类（绘画，书法，雕塑），艺术作品与历史和社会的联系，等等。

There was a growing lack of color in Anthony's days. He felt it constantly and sometimes traced it to a talk he had had with Maury Noble a month before.

安东尼时代越来越缺乏色彩。他经常感觉到它，有时会追溯到他一个月前与莫里·诺布尔的一次谈话。