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 Chestnut 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. Base coat with a reddish body, mane and tail, with no black pigment., can produce 8 different coat colors: Roan Bay (26%), Roan Chestnut (26%), Roan Black (20%), Bay (9%), Chestnut (9%), Black (7%), Roan Dark Brown (3%) and Dark Brown (1%). Results vary according to the genotype of each parent — use the filters above to explore specific combinations.