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The Ultimate Guide to True White Horses: Genetics, Breeds, and Care

The Ultimate Guide to True White Horses: Genetics, Breeds, and Care

Last updated: August 12, 2026

By: Miles HenryFact Checked

Most “white” horses are actually grays that lightened with age or pale cream horses—not true whites. A true white horse is born with white hair and pink, unpigmented skin beneath most or all of its coat. In all my time around Louisiana barns and tracks, I’ve only come across a handful; here’s how I tell one from a gray or cremello and when DNA testing is worth the expense.

How to Tell a True White Horse From a Gray or Cremello

True white vs. gray vs. cremello vs. perlino
TypeBirth ColorSkin / EyesChanges With Age
True WhiteWhitePink skin, usually brown eyesNone
GrayBay, black, or other base colorDark skin, dark eyesLightens progressively toward white
CremelloCreamPink skin, blue eyesNone
PerlinoSmoky creamPink skin, blue eyesNone

Born white or nearly white: Unlike a gray, the horse doesn’t begin life bay, black, chestnut, or another dark base color and progressively lighten.
Pink skin in white areas: Check the muzzle, eyelids, and other sparsely haired places. Dark skin strongly points toward gray – but pink skin alone doesn’t confirm true white, since cremellos and perlinos have pink skin too.
Don’t rely on eye color: Dominant-white horses typically have brown eyes, not blue. Blue eyes happen with some patterns, but eye color by itself isn’t a reliable test.
Confirm when it matters: Skin and foal history rule out gray. For breeding, registration, or a costly purchase, a genetic panel through UC Davis is what actually distinguishes true white from cremello, perlino, or smoky cream.

True white horse with pink skin visible around the muzzle and eyes
Pink skin rules out gray, but it doesn’t by itself rule out cremello or perlino – both share that trait.

I inspected a “white” foal at a sale a few years back that turned out to be nothing of the sort – dark skin around the eyes gave it away as a gray, and faint dapples showed up by the time it was two.

What Genetics Can Make a Horse White?

An all-white or nearly all-white horse is often associated with white-pattern genetics, including several known KIT gene variants – but not every variant makes a horse fully white, and appearance alone can’t identify the exact cause. UC Davis tests for five known variants: W5, W10, W13, W20, and W22. Their effects vary. One copy generally produces a white or extensively white-marked horse. Viability in two copies depends on the specific allele: W5, W10, W13, and W22 are considered likely embryonic lethal in double dose, while W20 – an older, more widespread mutation – is not.

Before breeding two white or extensively-marked horses: identify the specific allele first through UC Davis. A cross between two carriers of the same lethal-in-double-dose variant can end a pregnancy before birth. This is a separate issue from lethal white overo syndrome, below – it involves a different gene entirely.

A separate risk if you work with Paint Horses: lethal white overo syndrome isn’t caused by KIT at all. It comes from a mutation in the EDNRB gene, tied to the Frame Overo pattern. A foal that inherits two copies is born mostly or all white with a congenital absence of nerve cells in part of the intestinal tract, causing a fatal obstruction – not survivable more than a few days. If you’re breeding Paint or Paint-cross horses, ask specifically for an EDNRB/frame overo panel, not a general white-gene test.

White Horse Breeds and Bloodlines

The Camarillo White is a rare breed built around an all-white phenotype, tracing to the stallion Sultan, purchased by Adolfo Camarillo in 1921 – maintained today by the Camarillo White Horse Association. UC Davis identifies Camarillo White as its own distinct dominant-white variant, found exclusively in this breed.

True white also turns up elsewhere, though it’s genuinely uncommon. The American Cream Draft is a cream-colored breed associated with champagne dilution, not dominant white – a different gene entirely, despite the pale coat. Thoroughbreds, Arabians, and Quarter Horse-related bloodlines can all carry documented white-pattern variants – Quarter Horse lines specifically have been linked to W10, W13, and W20 – though the genetics need testing rather than a visual guess. Lipizzaners look white to most people but are actually grays born dark that lighten with age.

Breeding and Health Considerations

The management issue is pink, unpigmented skin – not simply a white-looking coat. Protect a pale muzzle, eyelids, and other exposed pink skin from strong sun, whether the horse is genetically true white, cremello, perlino, or heavily marked. That means equine sunscreen reapplied through the day, UV-protective gear, and shade during peak sun hours.

Miles’s Take: My near-white mare got a sunburned muzzle after just a couple of hours out in strong Louisiana sun one summer – it healed fine, but it taught me to treat sunscreen as routine, not optional, for any horse with significant pink skin. Regular hands-on checks caught a small lump on her tail early too, which turned out to be nothing serious, but catching it early is the whole point.

Gray horses carry a well-documented melanoma risk – up to 80% develop at least one by age 15, according to UC Davis’s Finno Laboratory. True whites don’t carry that specific gray-linked risk mechanism, but any horse with substantial pink skin is more prone to sun-related skin issues generally – a lesion that doesn’t resolve is worth a vet visit regardless of which gene is behind the coat.

Famous White Horses

Sodashi, foaled in Japan in 2018, is the standout: the first all-white Thoroughbred to win a Grade 1 race, with multiple Grade 1 wins including the Oka Sho and Victoria Mile, and a career record of 7 wins from 16 starts. Yukichan, foaled in 2005 out of the white mare Shirayukihime, was an earlier member of the same white-coated racing family and won on dirt – an early proof the color didn’t limit performance.

FAQs About True White Horses

Are white horses albinos?

No. Horses don’t carry the genes associated with true albinism. True whites have white-pattern gene variants that still produce pigmented eyes and some skin pigment in places, unlike albino animals, which lack pigment entirely.

How do I tell a true white horse from a gray or cremello?

Skin quickly separates most grays from pink-skinned white or cream horses. Foal history helps too, since true whites are born white while grays start out colored and lighten over time. But skin alone doesn’t distinguish true white from cremello or perlino – both have pink skin. DNA testing through UC Davis is the only way to confirm the exact genetic cause.

Which breeds have true white coats?

The Camarillo White is built entirely around the color, with its own exclusive dominant-white variant. True whites also occasionally appear in Thoroughbreds, Arabians, and Quarter Horse-related bloodlines. Lipizzaners look white but are actually grays that lighten with age.

Can two white horses be bred safely?

It depends on the specific variant each horse carries. W5, W10, W13, and W22 are considered likely embryonic lethal in double dose; W20 is not. A UC Davis panel identifies the specific allele before you breed, rather than guessing from appearance.

Are white horses prone to health issues?

Their unpigmented, pink skin is more sun-sensitive, raising the risk of sunburn and skin issues in exposed areas. This is a separate concern from breeding-related lethality, and from lethal white overo syndrome, which is a distinct EDNRB-linked condition in Paint Horses. Regular vet care and genetic testing before breeding address both.

For a buyer, color should never outrank soundness, temperament, records, and suitability – true white or otherwise.