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 Black mare with coat entirely black coat, with no dilutions and no Agouti gene action restricting black pigment to the points., can produce 4 different coat colors: Roan Black (44%), Black (44%), Roan Chestnut (6%) and Chestnut (6%). Results vary according to the genotype of each parent — use the filters above to explore specific combinations.