- dark bluish gray.
Origin of steel blue
First recorded in 1810–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for steel blue
But it was the steady look in the steel-blue eyes which told him most.The Night Riders
The moon, a white, cold patch, lay against the steel-blue sky.The Gaunt Gray Wolf
"This is the examination room," his Steel-Blue said, almost contemptuously.
One of Steel-Blue's tentacles broke off and fell to the rocky sward.
Steel-Blue had cut a swath around him 15 feet deep and five feet wide.
- a dark bluish-grey colour
- (as adjective)steel-blue eyes
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012