Dilution genes
Base colors:
All colors start out with a base color of chestnut, bay or black with modifying genes to change appearance.
Chestnut
Bay
Black
"Cream"
With 1 cream gene added:
One copy of the cream gene only affects red pigment turning it to a golden color, the black pigment is not affected.
  Palomino
(chestnut based)
  Buckskin
   (bay based)
  Smoky Black
  (black based based)
With 2 cream genes added:
Two copies of the cream gene dilutes original red pigment to a white/cream and dilutes black pigment to a cinnimon red color. Eyes are blue with mottled skin.
  Cremello
(chestnut based)                                
Cream
Dun
Silver Dapple
Champagne
  Perlino
  (bay based)
  Smoky Cream
   (black based based)
"Dun"
Basic dun characteristics include: Leg barring and dorsel stripe. Other characteristics may be present
With 1 or 2 Dun genes added:
One or two copies of the Dun gene dilutes the color to a lighter, flat pigment. Top layer of mane and dock of tail often have "frosting" of diluted color.
  Red Dun
(chestnut based)                                
Bay Dun
(bay based)                                
Grulla
(black based)                                
"Silver Dapple"
With 1 or 2 Silver genes added:
The silver dapple gene ONLY affects black pigment. The red pigment is not affected. The black on the body can turn to a chocolate color while the mane and tail turns white/cream. Mane and tail can darken with age.
  Chestnut silver
     (chestnut based)                                
Bay Silver
   (bay based)                                
Black Silver
   (black based)                                
"Champagne"
With 1 or 2 Champagne genes added:
The champagne gene acts and looks very similar to the cream gene. Black pigment is changed to brown. Champagne foals are born their "base" color with blue eyes and light skin but shed out to their modified color. Adults eyes changed to amber, skin is pink and mottled. This gene is know for it's "metallic sheen"
Gold Champagne
     (chestnut based)                                
Amber Champagne
            (bay based)                                
Classic Champagne
          (black based)                                
Mixes
            Dunskin
Bay base with Cream and Dun
         Silver Buckskin
Bay base with Cream and Silver
           Silver Dun
Bay base with Dun and Silver
Other modifying genes: grey, roan, pinto (tobiano, overo, tovero), appaloosa, splash, flaxen, rubicano, brindle....
           Smoky Silver
Black base with Cream and Silver
               Dunalino
Chestnut base with Cream and Dun