Cream

The Cream mutation dilutes the red pigment (phaeomelanin) in the hair. It is incomplete dominant: one copy of the cream dilution (n/Cr) results in Palomino and Buckskin coat colors; Smoky Black (black carrying cream) horses look the same as normal black. With two copies of the Cream variant (Cr/Cr), the dilution effect is complete, giving the Cremello, Perlino, and Smoky Cream coat colors. These three variants can look nearly identical, so it is often necessary to test the base color genetic variants (Agouti, Extension) to determine which base color the horse has.