The cross between a Roan Black stallion, whose 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. Entirely black coat, with no dilutions and no Agouti gene action restricting black pigment to the points., 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 (40%), Roan Black (21%), Bay (13%), Roan Chestnut (9%), Black (7%), Roan Dark Brown (4%), Chestnut (3%) and Dark Brown (1%). Results vary according to the genotype of each parent — use the filters above to explore specific combinations.