Discover 4 Fascinating Dog Breeds With Unique Blue Tongues Explore rare dog breeds with blue tongues and learn their unique traits. By Jackie Brown Updated on 06/10/25 Reviewed by Amy Fox, DVM Reviewed by Amy Fox, DVM Dr. Fox received her veterinary education at Cornell University and has 15-plus years of experience in the field. She has worked in emergency, shelter, medicine, surgery, and general medicine. Dr. Fox is passionate about client education and making sure pet parents have the most up-to-date, accurate, and accessible information to empower them as caregivers and companions. Learn more about The Spruce Pets' Veterinary Review Board Credit: Getty Images/Iurii Key Takeaways **Chow Chow and Shar-Pei's Tongue Color**: Both the chow chow and the shar-pei are required by their breed standards to have solid blue-black tongues. This distinctive trait is inherited and can disqualify chow chows if they have spotted tongues.**Ancient Breeds with Unique Characteristics**: The shar-pei and the chow chow are ancient breeds from China, valued for their unique characteristics, such as wrinkled skin and distinctive tongues. These breeds are known for their independence and loyalty but require solid training and socialization.**Eurasier and Thai Ridgeback's Tongue Traits**: While the Eurasier may have solid or spotted blue-black tongues due to its chow chow ancestry, the Thai ridgeback is noted for its preference for black markings on its tongue. Both breeds are loyal and protective but may be wary of strangers. Most dogs have pink tongues, but a few breeds naturally have blue tongues, sometimes referred to as black tongues. The chow chow and shar-pei must have blue tongues according to their breed standards, which dictate the required characteristics of each breed. Their tongues are always solid blue. The Eurasier and Thai ridgeback can have black-spotted or solid blue-black tongues. Some other breeds and mixed breeds may also have blue tongues or pink tongues with blue spots. The blue-black coloration (which also looks gray) is caused by extra pigmentation in the tongues of some dogs. In certain breeds, this excess pigmentation is a trait that’s passed on from generation to generation. A few other species have blue tongues, including giraffes, polar bears, okapis, impalas and blue-tongued skinks. Read on to find out which dog breeds can have blue tongues. 01 of 04 Shar-Pei Credit: Getty Images/Correcaminos112 The Chinese shar-pei is instantly recognizable thanks to their unique wrinkly skin and large, bubbled muzzle reminiscent of a hippopotamus. The shar-pei should have a blue-black tongue, preferably solid though some have only spotted tongues. This breed can be prone to many different health conditions, including skin problems, ear problems, eye problems, luxating patella, and hip dysplasia. No one knows for sure exactly how old this ancient breed is, but it’s possible that the shar-pei has existed in China for 2,000 years. It nearly went extinct in the 1970s, but American breeders took a fancy to the rare breed and shar-pei became very popular. The shar-pei is naturally wary of strangers and needs extensive socialization as puppies. They are highly devoted to their families but also independent, so they can be difficult to train. Breed Overview Group: Non-SportingHeight: 18 to 20 inches tall at the shoulderWeight: 45 to 60 poundsPersonality/Temperament: Devoted, loving, affectionate, reserved, independentEnergy Level: MediumCoat and Color: The short and bristly coat comes in solid black, chocolate, blue, or creamLife Span: 8 to 12 years 02 of 04 Chow Chow Credit: Getty Images/@Hans Surfer The chow chow’s tongue should always be solid blue-black color—the darker the better. A spotted tongue is a disqualifying fault according to the chow chow breed standard. Because the blue-black colored tongue is an inherited trait, it’s likely that the chow chow and shar-pei are distantly related. Chow chow puppies are born with pink tongues. They slowly turn a blue-black color as the puppy matures, starting around the time they open their eyes. The process is complete by 6 months of age. Like the shar-pei, the chow chow also hails from China and is as old or even older than the shar-pei. This breed requires very solid training and socialization from someone with experience raising dogs, as some chows can be overly territorial and independent. Breed Overview Group: Non-SportingHeight: 17 to 20 inches tall at the shoulderWeight: 40 to 70 poundsPersonality/Temperament: Aloof, independent, loyal, quiet, calmEnergy Level: MediumCoat and Color: The rough or smooth coat may be solid black, blue, cinnamon, cream, or redLife Span: 8 to 12 years 03 of 04 Eurasier Credit: Getty Images/juergen2008 The Eurasier is a younger dog breed, developed in Germany in the 1970s using several breeds, including the wolf spitz, samoyed, and chow chow, from which some Eurasiers inherited blue tongues, whether solid or spotted. The Eurasier was created specifically to be a loving and devoted family pet. The breed is active outdoors, but calm in the house, with a laid-back temperament. They can be standoffish with strangers but love their families. The breed is highly intelligent and easy to train, responding readily to positive-reinforcement methods. They need a moderate amount of exercise, and they enjoy training for dog sports like agility or flyball. Breed Overview Group: Non-SportingHeight: 19 to 24 inches tall at the shoulderWeight: 40 to 70 poundsPersonality/Temperament: Reserved, alert, calm, watchful, even-tempered, intelligentEnergy Level: MediumCoat and Color: The medium-long, straight coat may be any color or combination of colors except pure white and piebaldLife Span: 14 years 04 of 04 Thai Ridgeback Credit: Getty Images/White_bcgrd The Thai ridgeback is a rare and ancient breed that originated in Thailand more than 300 years ago, where it was used as a hunting dog and watch dog. Black markings on the tongue, either as spots or solid-colored, are preferred. The Thai ridgeback is a medium-sized dog with short hair and a ridge—a line of hair along the back growing in the opposite direction from the rest of the coat. The breed is active and athletic and needs plenty of daily exercise. Though the Thai ridgeback is highly intelligent, it is an independent breed so training can be challenging. The breed is naturally protective, so they require extensive socialization as a puppy and beyond. The Thai ridgeback is extremely loyal to its family but can be suspicious of strangers. Breed Overview Group: Hound Height: 20 to 24 inches tall at the shoulderWeight: Males: 50 to 60 pounds; females: 35 to 55 poundsPersonality/Temperament: Intelligent, loyal, independent, bold, protectiveEnergy Level: HighCoat and Color: The short and smooth coat comes in solid black, blue, fawn, or redLife Span: 12 to 15 years Explore more: Dogs Dog Breeds