顔色が白い have a fair complexion

顔色が良い have some color

顔色が良くない look sick 【形】off-color〈英〉

顔色が良くなった His color improved.

顔色の悪い 【形】pasty-faced

顔色をうかがう〔~の〕 watch out for

顔色をうかがう〔人の〕 be sensitive to someone's mood●curry favor with●try to gauge [gage] someone's feelings●try to judge someone's feelings

顔色をした〔~の〕 【形】complexioned〈通例複合語で〉

顔色をじっと伺う〔人の〕 watch someone's face

顔色を気にして〔~の〕 in [out of] deference to

顔色を見る〔人の〕 watch someone's expression

顔色を失う lose color

顔色を失った 【形】eclipsed

顔色を取り戻す restore color to someone's cheeks

顔色を読む read someone's attitude from his expression

顔色を読む〔人の〕 read someone's countenance●read someone's expression●read someone's face

顔色を変える change color●change one's countenance●go pale●vary one's expression 【自動】blanch

顔色を変える〔~に〕 blanch at