cobalt blue

noun

1

: a greenish-blue pigment consisting essentially of cobalt oxide and alumina

2

: a strong greenish blue

Examples of cobalt blue in a Sentence

Recent Examples on the Web

Lawrence proved that her maternity staples (like her beloved cobalt blue sweater) are just as welcome in her postpartum wardrobe; She’s also remained something of a sneaker savant, practically daring us to buy a pair of Adidas Tokyos. —Hannah Jackson, Vogue, 4 Apr. 2025

Aside from the boots, the actor wore a forest green, black, and navy blue tartan blazer and a cobalt blue turtleneck sweater. —Aamina Inayat Khan, StyleCaster, 26 Mar. 2025

Hers has a cobalt blue island in Benjamin Moore Gentleman’s Gray and black leather barstool chairs with fringe and nailheads by International Silks & Woolens that are decidedly reminiscent of leather jackets. —Kathryn Romeyn, Architectural Digest, 11 Dec. 2024

The royal paired the two together with a cobalt blue clutch that picked up on the eye-popping color in her shirt dress, while on a visit to Guadalupe on Wednesday. —Fn Staff, Footwear News, 1 June 2025

Word History

First Known Use

1835, in the meaning defined at sense 1

Rhymes for cobalt blue

• accrue
• ado
• ainu
• aircrew
• airscrew
• anew
• askew
• baboo
• babu
• bamboo
• beaucoup
• bijou