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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The star, styled by Coco Fontaine, donned a cobalt blue blazer and baggy jeans, which eventually revealed a plaid bra top underneath—tartan princess vibes by way of Miss Claire Sullivan (who also dressed Addison Rae in a brilliant pink tutu) and custom Victoria’s Secret.
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Christian Allaire, Vogue, 12 Apr. 2026
With flower hues ranging from white to deep cobalt blue, and silvery foliage, this colorful perennial is a showstopper.
—Peg Aloi, The Spruce, 12 Apr. 2026
There Ferreira wore a bold cobalt blue corseted gown designed by Zac Posen.
—Daisy Maldonado, InStyle, 7 Apr. 2026
As for colors, the Abound SR comes in cobalt blue, black, and purple.
—Erica Zazo, Outside, 27 Mar. 2026
See All Example Sentences for cobalt blue
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Christian Allaire, Vogue, 12 Apr. 2026
With flower hues ranging from white to deep cobalt blue, and silvery foliage, this colorful perennial is a showstopper.
—Peg Aloi, The Spruce, 12 Apr. 2026
There Ferreira wore a bold cobalt blue corseted gown designed by Zac Posen.
—Daisy Maldonado, InStyle, 7 Apr. 2026
As for colors, the Abound SR comes in cobalt blue, black, and purple.
—Erica Zazo, Outside, 27 Mar. 2026
See All Example Sentences for cobalt blue
Cite this Entry
“Cobalt blue.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cobalt%20blue. Accessed 23 Apr. 2026.
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