DILUTE COLOUR Casper is a Cremello horse. This means he has two copies of the Cream gene on a chestnut base coat. He also carries plenty of Bling (flashy white markings or sabino). This is shown as:Chestnut + Cream + Cream (always has blue eyes). This means Casper will throw one copy of Cream to every foal he sires. The shade of the resulting foal is dependant on the base coat colour of the mare and the interaction between that base coat colour and Cream. Chestnut = aaee or Aaee or AAee Palomino = aaeeCr or AaeeCr or AAeeCr Cremello = aaeeCrCr or AaeeCrCr or AAeeCrCr (and blue eyes) Palomino colouring Bay = AAEE or AaEe or AAEe or AaEE Buckskin = AAEECr or AaEeCr or AAEeCr or AaEECr Perlino = AAEECrCr or AaEeCrCr or AAEeCrCr or AaEECrCr (and blue eyes) Buckskin colouring Smoky Cream colouring Black = aaEe or aaEE Smoky Black = aaEeCr or aaEECr Smoky Cream = aaEeCrCr or aaEECrCr (and blue eyes) Chestnut horses can confuse people as they can produce a bay foal to a black sire. The reason for this is that they can carry Agouti like a bay horse. Because Agouti only dilutes a black base coat and has no affect on red, often the owner does not know until a bay foal is born to a black sire that this is the case or unless they have their mare colour tested. Genes are always paired. For a horse to be chestnut it must always be "ee". Bay = AAEE (Homozygous for Agouti and Extension. This genetic makeup will only throw bay foals 100% of the time). = AaEe (This genetic makeup can produce Bay, Black or Chestnut) = AAEe (This genetic makeup will only produce Bay or Chestnut) = AaEE (This genetic makeup will only produce Bay or Black) All bay horses are black-based with Agouti diluting black to brown over the body of the horse missing lower legs, mane and tail. Genetically a bay horse has to have at least one copy of Agouti (A) and one copy of Extension (E). For simplicity a Bay horse is Black + Agouti or Black + Agouti + Agouti Black = aaEe (This genetic makeup will produce Black and chestnut) = aaEE (This genetic makeup will produce Black 100% of the time) Genetically a Black horse must always be "aa" (no agouti) and Ee or EE. COLOUR MADE SIMPLE Bay = Black Base + Agouti or Black + Agouti + Agouti Palomino = Chestnut Base + Cream (Flaxen mane & Tail) Cremello = Chestnut Base + Cream + Cream (Flaxen mane & tail, blue eyes) Buckskin = Bay Base + Cream (Black mane & tail, body colour ranging from light to dark depending on the depth of the base coat colour) Perlino = Bay Base + Cream + Cream (Apricot {or close to} mane & tail, blue eyes) Smoky Black = Black Base + Cream (Horse just looks like a black horse) Smoky Cream = Black Base + Cream + Cream (Cream horse with blue eyes)