the cream gene. Their coats may have a cooler hue. Double cream champagne is a coat of any color affected by champagne and both copies of the cream gene. Unlike the coat colors associated with only a single cream gene, double cream champagnes (respectively prefixed with "gold," "amber," etc.) retain no obvious champagne traits. Their skin is clear pink without freckling, and the eyes are pale blue. The terms "cremello champagne", "perlino champagne" and so forth are also acceptable. Horses with both the champagne gene and the dun gene are also well-recorded. The dun gene is responsible for flat, diluted coat colors and vivid primitive markings. Bay dun is thought to be the wildtype horse coat color. Dun does not affect skin or eye color, but dilutes red pigment to yellow and black pigment to slate gray. Champagne horses with the dun gene will have slightly further-diluted coats compared to non-dun champagnes, and will always exhibit striking primitive markings, such as a dorsal stripe and zebra-like stripes on the legs. Naming schemes are much the same as with champagne-cream combinations. Champagne-dun combinations retain their champagne eye and skin traits. The coats are distinguishable from non-champagne duns in that they are several shades lighter, black pigment is chocolate rather than slate, and they may exhibit a sheen. The coats are distinguishable from non-dun champagnes in the presence of primitive markings and a flatter tone. Gold dun refers to an otherwise-chestnut coat affected by both the champagne gene and dun gene. The mane and tail may be ivory or self-colored; the body coat ranges from a warm cream to apricot color with primitive markings a shade darker. The coat is substantially paler and more "yellow" than that of a chestnut dun, and flatter than that of a gold champagne. Amber dun refers to an otherwise-bay coat affected by both the champagne gene and dun gene. The mane and tail and primitive markings are warm chocolate brown with a buff tan-colored body. The legs may, or may not, be dark as well. Sable dun refers to an otherwise-seal brown coat affected by both the champagne gene and dun gene. The points are chocolate-colored and the coat is darker than the amber dun. Classic dun or Classic grulla refers to an otherwise-black coat affected by both the champagne gene and dun gene. The coat possesses more cool slate-gray tones than a classic champagne, while