Overo
A group of white-over-dark pinto patterns in horses, not related to tobiano
No single value: Overo is a material, and its colour varies. The background shows its family, white.
Overo is a term for several horse coat patterns where white markings appear over a darker base, grouped by the American Paint Horse Association as distinct from tobiano. The patterns—frame overo, splashed white, and sabino—are genetically unrelated but share irregular white spotting, often with blue eyes and unique markings on the face and body.
- Overo is not a single gene but a group of unrelated patterns
- Frame overo is linked to lethal white syndrome in foals
- Splashed white overos often have blue eyes and may be deaf
- Sabino overos show roaning and high white markings on legs
- Overo patterns are classified as non-tobiano by US registries
What colour is Overo?
Overo describes several horse coat patterns where white markings appear over a dark base colour. These patterns are grouped together because they are not tobiano, another common pinto pattern. Overo includes frame overo, splashed white, and sabino, each with its own genetic cause. The white markings in overo patterns are often irregular, jagged, and do not cross the horse’s back. Blue eyes and bald-faced markings are common, especially in frame and splash types. Overo is used mainly in the United States to classify these distinct but visually similar patterns.
Where does Overo come from?
The word overo comes from Spanish, meaning 'like an egg'. In the United States, the American Paint Horse Association uses the term to group together white-over-dark patterns that are not tobiano. Historically, breeders used 'overo' for any non-tobiano pinto pattern, but modern genetics shows these patterns are unrelated. Outside the US, especially in Spanish-speaking countries, overo can mean something different, often referring to the speckled roaning patterns called sabino in the US.
Where Overo is used
Overo patterns are seen in horses, especially in breeds registered by the American Paint Horse Association. The patterns are valued for their striking appearance and are used to classify horses in shows and breeding. The frame overo is the most common, but splash and sabino are also recognised. Breeders use DNA tests to identify overo genes and avoid producing foals with lethal white syndrome.
White around the world
What the white family means from country to country.
Women campaigning for the vote marched in white dresses. Women in Congress have worn white to presidential addresses in memory of them.
Politics and protestPurity and peaceCourageSource: Women's suffrage in the United StatesThe Taliban flag is white with the Muslim declaration of faith in black. It replaced the black, red and green tricolour of the republic in 2021.
Politics and protestSacred and holySource: Flag of AfghanistanThe Mothers of the Plaza de Mayo wore white headscarves as they marched to demand news of children who disappeared under the dictatorship of 1976 to 1983.
Politics and protestMourning and deathCourageSource: Mothers of Plaza de MayoThe wiphala, a square flag of 49 small squares in seven colours with a white diagonal, stands for the Andean peoples. It has been a second national flag since 2009.
Politics and protestPrideSource: WiphalaOn New Year's Eve crowds on the beaches dress in white for peace in the year ahead. The custom comes from the Afro-Brazilian religions, whose followers wear white.
Luck and prosperityFestival and celebrationSacred and holyHopeSource: New Year's EveAn ordinary citizen's kabney is white with fringes. It must be worn to enter a dzong, the fortress that houses both monks and government offices.
Purity and peaceSource: KabneyShades and relatives of Overo
Overo covers three main patterns: frame overo, splashed white, and sabino. Frame overo has irregular, jagged white patches with dark legs and a solid-coloured tail. Splashed white looks as if the horse was dipped in white paint from below, with crisp edges and a high chance of blue eyes and deafness. Sabino patterns can range from minimal white markings to nearly all white, often with roaning and high stockings. Horses can also have mixed patterns, such as tovero, which combines tobiano and overo traits.
Questions people ask about Overo
What colour is overo?
Overo is not a single colour but a group of horse coat patterns with white markings over a darker base. The white patches are irregular and do not cross the back, and blue eyes are common.
Where does the name overo come from?
Overo comes from the Spanish word meaning 'like an egg'. In the United States, it refers to pinto patterns in horses that are not tobiano.
What are the types of overo patterns?
The main types are frame overo, splashed white, and sabino. Each has different genetic causes and distinct white markings.
Is overo linked to health problems?
Frame overo is linked to lethal white syndrome, a fatal condition in foals that inherit two copies of the frame gene. Splashed white may be associated with deafness.
How is overo different from tobiano?
Overo patterns have irregular, jagged white patches that do not cross the back, while tobiano has rounded, vertical spots with white crossing the topline and mostly white legs.
Good reading and sources
The facts on this page come from the Wikipedia article "Overo", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). Rang rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes. The swatch is an approximation: named colours are not fixed standards, and every screen shows them a little differently. If something is wrong, tell us. Last refreshed 2026-10-03.
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