cobalt blue

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cobalt blue

[¦kō‚bȯlt ¦blü]
(chemistry)
A green-blue pigment formed of alumina and cobalt oxide. Also known as cobalt ultramarine; king's blue.
References in periodicals archive ?
This time they were in black suits with cobalt-blue ties that matched Laurence Fishburne's Boateng all-blue Nehru-collared suit.
Seductively packaged in a cobalt-blue bottle with festive orange lettering, and retailing nationwide at $16.
Photographs show a cobalt-blue plume, 60 miles high, rising from the area known as Ra Patera.
High waves rose from a cobalt-blue sea to thunder against the beaches, their spray blown backward by tropical storm-force winds.