The cross between a Gray Bay stallion, whose coat the (G) gene acts on the base coat promoting progressive lightening throughout the horse's life until reaching very pale or completely white tones. 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 Bay 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. 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., can produce 16 different coat colors: Gray Roan Bay (18%), Roan Bay (18%), Gray Bay (18%), Bay (18%), Gray Roan Chestnut (4%), Roan Chestnut (4%), Gray Chestnut (4%), Chestnut (4%), Gray Roan Dark Brown (2%), Roan Dark Brown (2%), Gray Dark Brown (2%), Dark Brown (2%), Gray Roan Black (2%), Roan Black (2%), Gray Black (2%) and Black (2%). Results vary according to the genotype of each parent — use the filters above to explore specific combinations.