蔚蓝 HSK 7-9 wèilán azure blue; deep blue (of sky; sea) Examples 蔚蓝的天空 wèilán de tiānkōng The blue sky. 蔚蓝的大海 wèilán de dàhǎi The blue sea. 天空蔚蓝 tiānkōng wèilán The sky is blue
