Blue
Blue noun - The expanse of air surrounding the earth.
Steel blue and blue are semantically related. In some cases you can use "Steel blue" instead an adjective "Blue".
Steel blue
Steel blue noun - A greyish blue color.
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Synonyms for Steel blue
Blue and steel blue are semantically related. Sometimes you can use "Blue" instead a noun phrase "Steel blue".
Cite this Source
Steel blue and Blue. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/blue/steel_blue
Blue & Steel blue. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/blue/steel_blue>.
Steel blue or Blue. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/blue/steel_blue.
Google Ngram Viewer shows how "blue" and "steel blue" have occurred on timeline