《礼记·玉藻》
天子佩白玉，用玄色的丝带；诸侯佩山玄色的玉，用朱红色的丝带；大夫佩水苍色的玉，用细色的丝带；太子佩美玉，用苍白色的丝带；士佩孺玫，用赤黄色的丝带。
天子佩白玉而玄组绶，公侯佩山玄玉而朱组绶，大夫佩水苍玉而纯组绶，世子佩瑜玉而綦组绶，士佩瓀玟而缊组绶。
The emperor wears white jades, with a black ribbon; the princes wear black jade, with a red ribbon; the minister wears cyan jade, with a thin ribbon; the crown prince wears beautiful jade, with a white ribbon; the scholar wears Rumei, with a red-yellow ribbon.