primary color

primary-color的词性：
n.Color （名词）【色彩】

1. A color belonging to any of three groups each of which is regarded as generating all colors, with the groups being:
基色，原色：属于下列被认为是产生所有颜色的三组颜色中的任一种，分为：

2. Additive, physiological, or light primaries red, green, and blue. Lights of red, green, and blue wavelengths may be mixed to produce all colors.
原色：附加的，生理上的或光原色的红、绿、蓝三色。红色、绿色和蓝色的光波混合起来可产生各种颜色

3. Subtractive or colorant primaries magenta, yellow, and cyan. Substances that reflect light of one of these wavelengths and absorb other wavelengths may be mixed to produce all colors.
减色原色，染色原色：减色的或染色的品红色、黄色、蓝绿色。反射这些光波和吸收其他光波的物体可混合用来产生各种颜色

4. Psychological primaries red, yellow, green, and blue, plus the achromatic pair black and white. All colors may be subjectively conceived as mixtures of these.
原色：红、黄、绿、蓝，再加上非彩色的一对黑与白。每一种颜色可被主观地认为是这些颜色的混合色