noun
Refers to a subtle outward sign or hint of an inner state, feeling, or situation. Often used in expressions like 気色が悪い (feeling unwell or creepy) or 気色をうかがう (to read someone's mood).
彼の顔には怒りの気色が浮かんでいた。
A hint of anger appeared on his face.
彼女は気色悪そうにその虫を見つめた。
She stared at the bug with a look of disgust.
Compound of 気 (ki, 'spirit, mood') and 色 (shoku, 'color'), literally 'color of the spirit'. The reading けしき is a kun'yomi-based compound reading.