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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Cobalt blue ballet flats As Vogue predicted earlier this year, cobalt blue is shaping up to be the color of 2026. Tatiana Ojea, Glamour, 10 May 2026 Thompson married her jewelry with a custom cobalt blue — or klein blue — silk crêpe gown by Valentino. Michelle Lee, PEOPLE, 6 May 2026 Choose from several vibrant colors like bright yellow, Kelly green, and cobalt blue. Kate McGregor, Architectural Digest, 6 May 2026 Equally enchanting this fashion month were Celine’s colorful leather pouches—particularly in cobalt blue, a trending hue—as seen on Ramya Giangola and Yumi Shin below. Andrea Zendejas, Vogue, 27 Apr. 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

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Cite this Entry

“Cobalt blue.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cobalt%20blue. Accessed 15 May. 2026.

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