《黄帝内经·灵枢·邪气藏府病形》
岐伯回答说：若病人所呈现的面色是青色，则与它相应的脉象应该是端直而长的弦脉；面色是红色，与它相应的脉象应该是来盛去衰的钩脉；面色是黄色，与它相应的脉象应该是软而弱的代脉；面色是白色，与它相应的脉象应该是浮虚而轻的毛脉；面色是黑色，与它相应的脉象应该是沉坚的石脉，以上是面色和脉象相应的关系。
岐伯答曰：色青者，其脉弦也；赤者，其脉钩也；黄者，其脉代也；白者，其脉毛；黑者，其脉石。
Qibo answered: If the patient’s complexion is green, then the corresponding pulse should be a straight and long string pulse; if the complexion is red, then the corresponding pulse should be a hook pulse that comes strongly and goes weakly; if the complexion is yellow, then the corresponding pulse should be a soft and weak substitute pulse; if the complexion is white, then the corresponding pulse should be a floating, empty and light hair pulse; if the complexion is black, then the corresponding pulse should be a deep and firm stone pulse. These are the corresponding relationships between the complexion and the pulse.