neutral colour

Grey ( Gray): A visual perception that appears under a neutral light ( colour temperature approximately 5000 degrees Kelvin) when the proportions of different wavelengths of the visible spectrum are equal.

灰色：在中性光下（色温约5000K），当光谱内各光波的比例相等时，视觉所得的概念。

According to conventional technology of neutral-bath dyeing, direct dyes with bright colour and good colour fastness and dischargeable by reductants can not be used in the dyeing of silk fibre.

常规的中性浴染色工艺认为：某些色泽比较鲜艳、色牢度较好并可被还原剂破坏的直接染料不能上染真丝纤维。

Yellow is a sex neutral colour.

黄是性别上的中型色调.

You'll get more wear out of a hat if you choose one in a neutral colour

如果你选个中性颜色的帽子，戴的时间会更多一些。

a neutral colour scheme

中和色组合