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

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Leading the charge was Miu Miu, whose latest New Balance collaboration reconstructed the archival RC150 racing sneaker in punchy shades, from cobalt blue and neon yellow to tomato red and vibrant orange. — Kristina Rutkowski, Vogue, 20 Oct. 2026 Another notable look featured Chastain rocking a voluminous, curly bob while posing in a cobalt blue satin gown. — Chanel Vargas, InStyle, 8 Oct. 2026 Throughout the Givenchy spring 2027 shoe range, colors ranged from cobalt blue to glossy burgundy to classic black to white with blue accents. — Jaden Thompson, Footwear News, 5 Oct. 2026 Throughout the day, the cobalt blue ‘Living Room’ by the check-in area serves crowd-pleasing dishes like burgers, salads, and lobster rolls. — Condé Nast, Condé Nast Traveler, 29 Sep. 2026 See All Example Sentences for cobalt blue

Word History

First Known Use

1835, in the meaning defined at sense 1

Time Traveler
The first known use of cobalt blue was in 1835

Rhymes for cobalt blue

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Browse Nearby Words

cobalt bloom
cobalt blue
cobalt bronze
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Cite this Entry

“Cobalt blue.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cobalt%20blue. Accessed 27 Oct. 2026.

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More from Merriam-Webster on cobalt blue

Britannica.com: Encyclopedia article about cobalt blue

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