The cross between a Bay stallion, whose coat brown body with black mane, tail, lower legs and ear tips, due to the presence of black pigment restricted to the points by the Agouti gene., and a Roan Dark Brown mare with coat the (Rn) gene acts on the base coat by distributing white hairs throughout the body, giving it a roan appearance. The head and legs retain the original base color tones. Dark brown coat, often nearly black, with black points, expressed over the bay base., can produce 8 different coat colors: Roan Bay (33%), Bay (33%), Roan Chestnut (7%), Chestnut (7%), Roan Dark Brown (6%), Dark Brown (6%), Roan Black (4%) and Black (4%). Results vary according to the genotype of each parent — use the filters above to explore specific combinations.