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Are Silver Labradors Purebred? The Science Behind the Controversy

Writer: LC Hunting LabsLC Hunting Labs

Silver Labradors, with their striking gray coats, have been stirring up quite a bit of debate among Labrador lovers. For some, their unique coloring adds to their charm and appeal. For others, it’s a source of controversy, raising questions about their place in the Labrador Retriever family.


The big question? Are silver Labradors truly purebred, or is there more to their story than meets the eye? This debate has been ongoing for decades, and opinions are as varied as the dogs themselves.


For those who believe silver Labradors are not purebred, the topic is often approached with fervent passion. They argue that the very integrity of the breed is at stake and see the recognition of silver Labs as a threat to the Labrador’s storied history and standard.


Supporters of silver Labradors, however, see them as a natural and beautiful extension of the breed. They argue that the silver coat is simply the result of genetic variation, much like fox-red or champagne Labradors. For them, DNA evidence proving silver Labs are purebred provides the ultimate answer to the controversy. They believe the breed’s genetic diversity is a strength, not a weakness, and celebrate the unique beauty of silver Labs.


Our goal here is to provide facts from both sides of the debate so readers can weigh the evidence and make up their own minds about these stunning dogs.


Remi | Silver Labrador | LC HUNTING LABS

 

Labrador Retrievers: Origins, Traits, and Evolution


To truly understand and make an informed decision, I believe it's crucial to understand the history of Labrador Retrievers as we know them today. Labrador Retrievers are one of the most popular and beloved dog breeds worldwide, celebrated for their intelligence, loyalty, and versatility. These dogs trace their origins to Newfoundland, where their ancestors, the St. John’s Water Dogs, were bred by fishermen to retrieve fish, nets, and other items from the frigid North Atlantic waters. These hardworking, loyal dogs laid the foundation for the modern Labrador Retriever.


In the 19th century, English nobles visiting Newfoundland brought some of these dogs back to England, where they refined and developed the breed into the Labrador Retriever we know today. To create the modern Labrador Retriever, early breeders primarily refined the St. John’s Water Dog with influences from several European breeds. These included:


Breeds Contributing to the Modern Labrador Retriever:

  • St. John’s Water Dog: The foundation breed of modern Labradors, these dogs were bred by fishermen in Newfoundland to assist in retrieving fish and fishing gear. They were hardy, loyal, and known for their swimming abilities.

  • English Setters: Contributed traits for a calm temperament and work ethic, enhancing the Labrador’s suitability as a gundog.

  • Flat-Coated Retrievers: Added refinement to the retrieving instinct and contributed to the Labrador’s sleek appearance.

  • Newfoundlands: These larger, water-loving dogs may have influenced the Labrador’s swimming abilities and strong, thick coat.

  • Spaniels (likely Tweed Water Spaniels): May have added agility and further enhanced retrieving skills.


Through this careful refinement, Labradors gained their hallmark traits: a strong retrieving drive, exceptional trainability, and a gentle, outgoing temperament. These traits quickly earned them recognition as the ideal gundog, as well as a reliable companion.


Physically, Labradors are characterized by their athletic build, friendly expression, and water-resistant double coat. Traditionally, they come in three standard colors—black, yellow, and chocolate—though non-standard shades like fox-red and silver have gained attention in recent years. Their thick “otter” tail and webbed feet are adaptations that make them excellent swimmers, while their sturdy, balanced frame allows them to excel in both work and play.


Labradors’ adaptability has made them a favorite for many roles, including search and rescue, service and therapy work, and competitive dog sports. Today, they are not only cherished as family companions but also as reliable working dogs, continuing the legacy of their ancestors as one of the most versatile and recognizable breeds in the world. This history provides important context for understanding the debate surrounding unique coat colors like silver Labradors, as the breed’s evolution is deeply tied to selective breeding for specific traits.


 

Where Did Silver Labradors Come From?


Labradors are usually known for their classic black, yellow, and chocolate coats. But then, in the 1950s, something unusual happened. Kellogg’s Kennels, a well-known breeding operation, began advertising "rare gray Labradors." This was the first time silver Labs were brought to the public’s attention, and they instantly became a hot topic. Were these dogs a natural variation within the breed, or did they have an unusual origin?


One theory suggests that the silver color came from crossbreeding Labradors with Weimaraners, a breed famous for its sleek, gray coat. The argument here is that the Weimaraner’s dilute gene may have been introduced to the Labrador line, leading to the silver hue. Critics of silver Labradors often point to this theory as evidence that they’re not purebred.


On the flip side, supporters of silver Labradors argue that the dilute gene could have always been part of the Labrador Retriever’s genetic makeup. After all, Labradors trace their lineage back to the St. John’s Water Dog, a breed known for a variety of coat colors. It’s possible that the dilute gene was simply hidden for generations and only became more common when breeders began selectively breeding for the silver color.


Another factor fueling the controversy is the rarity of the silver coat. Anything rare tends to grab attention—and sometimes skepticism. The fact that silver Labradors are relatively new to the scene compared to their black, yellow, and chocolate counterparts only adds to the debate.


Regardless of their origin, silver Labradors have captured the hearts of many dog lovers. Their unique appearance and undeniable charm make them a standout within the Labrador Retriever family, even as the debate about their background continues.


 

What Makes Their Coat Silver?


The silver color comes from something called the dilute (d) gene. This gene is recessive, which means a dog has to inherit a copy from both parents (dd) to show that silvery coat. In silver Labradors, the dilute gene lightens the chocolate coat to a cool gray shade.


This isn’t just a Labrador thing—other breeds have similar coat dilutions, like "blue" in Weimaraners or "lilac" in Dobermans. And for those wondering, the dilute gene only affects coat color; it doesn’t change the dog’s personality, health, or lovable nature.


How Does Silver Compare to Other Unique Labrador Colors?

  1. Champagne Labradors: These beauties have a creamy, light gold coat. It’s the result of the dilute gene working on a yellow Labrador. Think of champagne as the "silver" version of yellow. The dilute gene lightens the yellow pigment, giving these Labradors a soft, almost glowing coat that stands out from the typical shades of yellow. Despite their unique appearance, champagne Labradors are just as playful, loyal, and intelligent as their darker-colored counterparts, making them a popular choice for those seeking something a little different while still enjoying all the qualities of a classic Labrador.

  2. Fox-Red Labradors: Fox-red Labs are just a deeper shade of yellow. Their reddish hue comes from different genes that intensify their color, not the dilute gene. They’re still considered yellow Labs, just with a bold twist.

  3. White Labradors: On the flip side, white Labradors are the lightest version of yellow. They’re not influenced by the dilute gene either—their coat is just super pale, thanks to reduced pigmentation.


 

The Genetic Makeup of Labradors: Ancestral Insights


Labradors trace their roots to the St. John’s Water Dog, a now-extinct working breed from Newfoundland. These dogs were bred to assist fishermen, and their lineage included a mix of various European working dogs, known for their diversity in coat colors and types. While black, yellow, and chocolate became the standard for modern Labradors, their ancestors likely carried genes for rarer traits, such as coat dilution.


Was the Dilute Gene Always There?

The dilute gene (responsible for silver, champagne, and similar coat colors) is naturally present in canine genetics. It’s not exclusive to Labradors, and many breeds carry this gene. However, it’s unclear if the dilute gene was actively expressed in the St. John’s Water Dog or if it was introduced later through selective breeding or accidental crossbreeding.


Genetic studies have shown that silver Labradors pass all standard Labrador DNA markers, which suggests that they are purebred. While the dilute gene’s presence in Labradors might be controversial, it’s scientifically plausible that it has existed within the breed’s genetic pool for centuries.


 

What Do the Experts Say?

The American Kennel Club (AKC) only recognizes black, yellow, and chocolate as official Labrador colors. However, they’ll still register silver Labs under the chocolate category, acknowledging that silver Labs meet the genetic criteria for purebred Labradors. This approach is pragmatic, treating the silver coat as a variation of chocolate rather than a separate category. Meanwhile, the Labrador Retriever Club (the AKC’s parent club for the breed) takes a more cautious stance. They argue that the introduction of the dilute gene could indicate crossbreeding in the breed’s history, which, in their view, raises questions about the purity of silver Labradors. This split in perspective underscores the ongoing debate over how much weight should be given to genetic markers versus traditional breed standards.


 

The Science Behind It

Signs of Crossbreeding


If crossbreeding played a role in the origin of silver Labradors, there may be some subtle indicators beyond just coat color. Here are a few traits that could hint at influence from breeds like the Weimaraner:


  1. Body Structure: Weimaraners are taller and leaner compared to the stockier build of a typical Labrador. Silver Labradors with a more elongated frame or narrower chest could suggest crossbreeding, although such traits can also naturally occur within Labradors.

  2. Head Shape: Weimaraners have a more angular head and longer snout than Labradors. Silver Labradors exhibiting these features might raise questions, though slight variations in head shape are not uncommon in purebred Labradors.

  3. Ear Position and Shape: Labrador ears are set lower and are more rounded, while Weimaraners have slightly higher-set ears. Differences in ear shape and placement could be a clue but are not definitive proof of crossbreeding.

  4. Behavior and Temperament: Labradors are famously outgoing and friendly, with a strong retrieving drive. Weimaraners, while energetic, tend to be more independent and sometimes reserved. Behavioral traits that deviate from the typical Labrador temperament might indicate crossbreeding, but individual personality differences are common within any breed.

  5. Tail Carriage: Labradors have a thick, "otter" tail, whereas Weimaraners have thinner, docked tails in many cases. A whip-like tail in a silver Labrador might be a point of curiosity but could also occur naturally.

  6. Coat Texture: While Labradors have a dense, double-layer coat, Weimaraners have a shorter, smoother coat. A silver Labrador with an unusually sleek or short coat might suggest influence from another breed, although coat variations can happen naturally within Labradors.


These traits alone are not definitive proof of crossbreeding but could provide context when paired with other evidence, like historical breeding records or genetic testing. It’s important to remember that many of these features can naturally occur within the Labrador breed. DNA testing consistently shows that silver Labradors meet all the genetic markers of purebred Labs, reinforcing the idea that their unique coat is simply a natural variation rather than evidence of crossbreeding. This perspective aligns with the broader understanding of canine genetics and supports the view that silvers are just as much a part of the Labrador family as their black, yellow, and chocolate counterparts.


Researchers have pinpointed the dilute gene (MLPH mutation) as the cause of silver coats. This gene affects the transport of pigment within the hair shaft, leading to the diluted, lighter appearance of the coat. It’s the same gene responsible for coat dilution in other breeds, such as "blue" in Weimaraners and "lilac" in Dobermans. While this explains the genetic mechanism behind the silver coat, it doesn’t settle the larger argument. Some experts argue that the gene could have naturally existed in the Labrador breed’s ancestral pool but remained hidden due to selective breeding for traditional colors. Others suggest that the dilute gene was introduced through crossbreeding, most notably with Weimaraners, during the mid-20th century. Without definitive historical records, the question of whether the gene is "natural" in Labradors or introduced later remains unresolved, fueling both sides of the debate.


 

Silver Labradors are undeniably unique and beautiful, but they’ve sparked a lot of conversations about what it means to be a "purebred." The dilute gene, which gives them their stunning gray coats, is a natural genetic variation identified through extensive research. DNA tests consistently demonstrate that silver Labradors meet all the genetic markers of purebred Labradors. Like other non-standard colors—fox-red, champagne, and white—silver adds to the diversity and charm of this beloved breed, showcasing the variety within the Labrador family.


The scientific findings, coupled with the recognition that natural genetic variation exists in all breeds, strongly support the idea that Silver Labradors are as legitimate and purebred as their black, yellow, and chocolate counterparts. While the debate may continue, one thing is certain: Labradors, in all their colors, are amazing dogs who continue to win hearts everywhere.


Do you own a silver Labrador or have thoughts on this controversy? Share your story below!


 

Sources

  • American Kennel Club. (2025). Labrador Retriever Breed Standard. Retrieved from akc.org.

  • Labrador Retriever Club, Inc. (2025). The Issue of the Silver Labrador. Retrieved from thelabradorclub.com.

  • Bannasch, D. et al. (2010). Identification of the MLPH gene mutation associated with coat color dilution. Journal of Canine Genetics.

  • Wilcox, B. & Walkowicz, C. (2015). The Complete Labrador Retriever. Howell Book House.


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