三原色 sānyuánsè additive primary colors Origin Definitions Defs Strokes Stroke Words Sentences Sents 三 sān numeral three the number three; 3原色 yuánsè noun primary color One of the base colors that can be mixed to create all other colors, such as the pigment triad of red, yellow, and blue or the light triad of red, green, and blue; also used to refer to the major colors of the solar spectrum.