Definition of cerulean blue
1a
: a variable color averaging a strong greenish blue that is bluer and duller than grotto or cobalt blue and bluer and lighter than indigo carmine
b
: a strong blue that is greener and stronger than Sèvres and greener, lighter, and stronger than Victoria blue
— called also coelin
2
: a stable light greenish blue pigment consisting essentially of oxides of cobalt and tin and used as an artist's color
Buying Guide
Play with color with paint by number kits for adults selected by our Reviews team.
Test Your Vocabulary
Commonly Confused Words Quiz
-
- I went to the ______ store to buy a birthday card.

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share cerulean blue