cobalt blue

noun

Definition of cobalt blue

  1. 1 :  a greenish-blue pigment consisting essentially of cobalt oxide and alumina

  2. 2 :  a strong greenish blue

First Known Use of cobalt blue

1835


COBALT BLUE Defined for English Language Learners

cobalt blue

noun

Definition of cobalt blue for English Language Learners

  • : a deep blue color


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