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
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Last winter, Jennifer Lawrence traded in her beloved pop of red styling hack for a cobalt blue sweater from The Row. Hannah Jackson, Vogue, 2 Jan. 2026 The monochromatic brown palette is a shift from her typical Christmas Day style, which usually sticks to festive greens, reds, and cobalt blues, and went for this year’s trendy brown. Karla Rodriguez, Footwear News, 29 Dec. 2025 With a swirling chrome base and cobalt blue surface (plus removable tray, of course), this table combines two of the biggest trends of the year. Kate McGregor, Architectural Digest, 26 Dec. 2025 The all-in-one pieces range from hot pink, cobalt blue, metallics and even a black PVC piece. Alyce Collins, MSNBC Newsweek, 11 Dec. 2025 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

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Cite this Entry

“Cobalt blue.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cobalt%20blue. Accessed 11 Jan. 2026.

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