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Related to iron blue: steel blue
Any of various light-resistant and heat-resistant, semitransparent blue pigments of powerful tinctorial strength, used chiefly in permanent industrial finishes, printing inks, and artists' colors. Also called Prussian blue.
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|Noun||1.||iron blue - slightly purplish or bluish dark grey|
|2.||iron blue - any of various blue pigments|
pigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)