steel blue

dark bluish gray.

Origin of steel blue

First recorded in 1810–20

An important natural enemy of this scale is the steel-blue ladybird beetle (Orcus chalybus), introduced from Australia.

Garden Pests in New Zealand |D. Miller
Tom's steel-blue eyes flashed at the thought of new fields of scientific conquest.

Tom Swift and the Electronic Hydrolung |Victor Appleton
Distant mountains rise against the steel-blue sky in serrated silhouette, and gradually draw in upon the river.

My African Journey |Winston Churchill
She stole a sidelong glance at the tired, lined face with its steel-blue eyes.

All Roads Lead to Calvary |Jerome K. Jerome

“Thank you,” she said quietly, and turned her face and smiled at the now steel-blue reaches of the river.

Counsel for the Defense |Leroy Scott

steel blue