blue-black

adjective

Definition of blue-black

 (Entry 1 of 2)

: extremely dark especially : black with a tinge of blue

blue black

noun

Definition of blue black (Entry 2 of 2)

1 : a pigment of a blue-black color (such as a vegetable black or a carbon black)
2 : a dye producing a blue-black color

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“Blue-black.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blue-black. Accessed 6 Mar. 2021.

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