iron blue

English Thesaurus

1. any of various blue pigments (noun.substance)

hypernym	:	pigment,
definition	:	dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) (noun.substance)

2. slightly purplish or bluish dark grey (noun.substance)

hypernym	:	gray, grayness, grey, greyness,
definition	:	a neutral achromatic color midway between white and black (noun.attribute)