cerulean
Word family adjectiveceruleceruleanceruleousnouncerulein
ce·ru·le·an /səˈruːliən/ (also cerulean blue) noun [uncountableU] literary —cerulean adjectiveadj
Origin cerulean (1600-1700) Latin caeruleus “dark blue”, probably from
caelum;
→ CELESTIAL