The cross between a Chestnut stallion, whose coat base coat with a reddish body, mane and tail, with no black pigment., and a Gray Dark Brown mare with 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. Dark brown coat, often nearly black, with black points, expressed over the bay base., can produce 8 different coat colors: Gray Bay (25%), Bay (25%), Gray Chestnut (18%), Chestnut (18%), Gray Black (4%), Black (4%), Gray Dark Brown (3%) and Dark Brown (3%). Results vary according to the genotype of each parent — use the filters above to explore specific combinations.