Synonyms

cerulean

American

[suh-roo-lee-uhn] / səˈru li ən /

adjective

deep blue; sky blue; azure.
Heraldry. a sky-blue tincture, used especially on the Continent.

cerulean British

/ sɪˈruːlɪən /

noun

1. a deep blue colour; azure
2. ( as adjective )
  
  a cerulean sea

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of cerulean

1660–70; < Latin caerule ( us ) dark blue, azure (akin to caelum sky) + -an

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

At the front desk, I was greeted by a host who accompanied me down the hall and into a glowing cerulean room.

From Los Angeles Times • Feb. 18, 2026

But after Miranda’s legendary cerulean monologue, Andy realizes that fashion is more than just stick-thin models and clothes that cost more than your rent.

From Salon • Aug. 17, 2025

Miranda Priestly, along with her anti-bacterial wipes and excellent taste in cerulean sweaters, will once again be portrayed by Hollywood royalty Meryl Streep.

From BBC • Jul. 2, 2025

Whether ultramarine, cerulean, Egyptian or cobalt, blue pigments have colored artworks for centuries.

From Science Daily • Feb. 22, 2024

The cerulean blue of Peace fell away next.

From "The Undead Fox of Deadwood Forest" by Aubrey Hartman

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023