blue-black
Americanadjective
Other Word Forms
Etymology
Origin of blue-black
First recorded in 1815–25
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
One especially noticeable blue-black patch in the rougher section of the valley is believed to be volcanic ash that was later redistributed by Martian winds, as seen in the accompanying 3D perspective views.
From Science Daily ● May 15, 2026
Inspired by a 2016 true-crime story, Sing L. Lee’s strong debut “The Accidental Getaway Driver” is a human-sized thriller set across several blue-black nights off the grid in Orange County.
From Los Angeles Times ● Mar. 1, 2025
At this moment, the sky will turn from light blue to dark blue-black, and you will be able to suddenly see a few stars in the sky along with the planet Mercury.
From Salon ● Apr. 27, 2023
The etching is done with a mixture of ultramarine blue and soft black ink, which creates the blue-black color of the trunk and leaf outlines.
From Seattle Times ● Nov. 18, 2022
The star soars diagonally across the blue-black sky, leaving a trail of—what?
From "Will’s Race for Home" by Jewell Parker Rhodes
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
