Where is the color Brown?

In horses, “brown” usually means seal brown (At)—a very dark form of bay. In the calculator, choose Base: Bay and (if offered) Shade/Subtype: Seal Brown (At). If no subtype option exists, select Bay.

How do I select Gray for my Sire or Dam?

Gray is a dominant modifier (G), separate from the base color. In the parent panel: Pick the horse's base color (Bay, Black, Chestnut, etc.) Toggle Gray (G) on. Notes: GG = all foals gray, Gg ≈ 50% gray on average.

Bu“Chocolate” in horses typically refers to the Silver (Z) dilution on a black-based coat (often called silver dapple). In the calculator, select Base: Black (or Bay), then add Silver (Z). Black + Silver (Z) → classic “Chocolate/Silver Dapple” look Bay + Silver (Z) → “Silver Bay” Chestnut + Silver (Z) → no visible change (carrier only)

“Taffy” is a regional term (common in AUS/NZ) for Silver (Z)-diluted coats. Use Silver (Z) with the correct base: Black + Silver (Z) → Chocolate Taffy Bay + Silver (Z) → Bay Taffy Chestnut + Silver (Z) → looks chestnut (carrier), still select Silver (Z) if you want genetics shown.

Equine Color Calculator

Parent Genetics

Sire's Genetics

Extension (Red/Black Factor)

Determines if a horse can produce black pigment. "ee" horses are red-based.

Agouti

Restricts black pigment to the points (mane, tail, legs). Only affects black-based horses.

Cream

A dilution gene that lightens the coat, with a stronger effect when homozygous.

Dun

A dilution gene that lightens the body and adds primitive markings.

Silver

Dilutes black pigment on the body and mane/tail. Does not affect red pigment.

Champagne

A dominant dilution gene that lightens both red and black pigment, often with mottled skin.

Gray

Causes progressive graying with age, eventually turning the horse white. Masks all other colors.

Roan

Causes white hairs to be intermixed with the base coat color on the body.

Tobiano

A dominant pinto pattern characterized by large, rounded white patches.

Frame Overo (LWO)

A pinto pattern. Homozygous (OO) results in Lethal White Overo syndrome.

Dam's Genetics