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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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Upstairs, the primary suite flaunts an arched fireplace finished in cobalt blue tile, a curving balcony, and a ladder ascending to a loft retreat overlooking the coastline all the way to Point Dume. Wendy Bowman, Robb Report, 18 Nov. 2025 To add some interest, Jenner wore an extra-long, cobalt blue scarf. Anna Cafolla, Vogue, 30 Oct. 2025 Set against a backdrop of ivory and sand tones, the elegant furnishings employ elevated silhouettes and textured fabrics, while the cobalt blue chef’s kitchen brings an unexpected vibrancy to the open-living layout. Gabriela Ulloa, Architectural Digest, 25 Oct. 2025 While the duchess opted to personalize her version with cobalt blue letters on a navy body, shoppers can choose from three additional sizes and 14 additional colors — plus up to three letters — to craft their ideal bag. Averi Baudler, PEOPLE, 23 Oct. 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 28 Nov. 2025.

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