A look at steel grey horses around the world and on a variety of different breeds.
Animals of any color with a grey modifier are born their base color and grow lighter as they age. Steel or iron grey is the earliest greying stage for a young animal, when the white hairs begin to show through on a black or seal brown coat. This stage ranges in color from charcoal grey to an almost blue color that can be mistaken for a grullo or a blue roan.
