iron blue

Definitions of iron blue
  1. noun
    slightly purplish or bluish dark grey
    synonyms: Davy's gray, Davy's grey, steel gray, steel grey
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    type of:
    gray, grayness, grey, greyness
    a neutral achromatic color midway between white and black
  2. noun
    any of various blue pigments
    synonyms: Prussian blue
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    type of:
    dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
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