cerulean

Something that's cerulean is colored a clear, deep blue. On a sunny summer day, the sky is often cerulean, with just a few puffy white clouds.

Your cerulean sweater might be your favorite, since you believe it makes your eyes look cerulean as well. Tropical beaches can claim to have white sand and cerulean water, and a bright October morning often comes with a cerulean sky. The word has been around since the 17th century, from the Latin caeruleus, "dark blue," with the root caelum, "heaven" or "sky."

Definitions of cerulean
1

adj deep blue like the color of a clear October sky

Synonyms:
azure, bright blue, sky-blue
chromatic
being or having or characterized by hue

n a light shade of blue

Synonyms:
azure, lazuline, sapphire, sky-blue
Type of:
blue, blueness
blue color or pigment; resembling the color of the clear sky in the daytime

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