Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Should I Avoid Purebred Dogs in Rare Colors? Vet-Approved Facts & FAQ

merle australian shepher dog playing outdoor

Purebred dogs come in more and more colors, but should you avoid buying them? It depends. Rare colors in dogs are linked to genes that can be associated with certain health problems. Some purebred dogs in rare colors are sometimes born with health conditions, such as impaired hearing, ocular defects that can cause blindness, or skin and coat problems.

So, the answer is yes and no, as not all purebred dogs in rare colors come with health issues, but some do. In some cases, rare colors are rare for good reason.

dogster face divider

Why Are Rare Colors Popular?

Like any other market, in the pet trade, rare or unique animals typically command higher prices. They can be a status symbol or hot trend, especially if it’s well known that they’re expensive, and irresponsible breeders will scramble to try to produce these rare specimens to cash in—regardless of potential health problems.

Unfortunately, that can often mean introducing defective genes into the gene pool and producing puppies that are likely to have health problems. This goes for many exaggerated or novel features, including rare coat colors or patterns.

american staffordshire terrier on the grass
Image Credit: Vera Zinkova, Shutterstock

Is Breeding for Rare Colors Unethical?

Breed registries like the American Kennel Club have breed standards for a reason. Some of them are based on aptitude, conformation, and temperament for the dog’s purpose, others are within the confines of the breed’s natural colors or markings and for aesthetic reasons.

Puppies can be born with a range of colors and patterns, even within a responsible breeding program. Color is a low priority after selecting dogs for their health, temperament, and capabilities. With the rare colors, however, irresponsible breeders may prioritize producing certain colors, even if it means pairing unhealthy dogs.

In addition, breeders may produce litter after litter in hopes of getting a rare, high-dollar litter. With shelters filled and more pets than homes to take them in, it’s irresponsible to produce more dogs that don’t contribute positively to the breed.

What Colors Have Health Problems?

Here are some colors that have known health issues as stated from the ASPCA:

Merle

The merle or dapple pattern is an inherited pattern with light and dark pigments, often with blue eyes or pink noses and paw pads on dark dogs. This is typically seen in Australian Shepherds, Dachshunds, and Great Danes, but it’s popping up more and more in other breeds like French Bulldogs and Corgis.

Merle patterns can happen when a dog with the merle gene mates with a dog without the merle gene, or from mating two merle dogs. The puppies from two merle parents, called double-merle, are often born blind or deaf. In fact, mating between two merles is not allowed by kennel clubs since there is a 25% probability of producing puppies with health issues.

merle cardigan welsh corgi dog sitting outdoor
Image Credit: Elisabeth Abramova, Shutterstock

Blue and Lilac

Blue and lilac coats are associated with a color-dilution gene. Diluted black produces a blue coat color and diluted brown creates a lilac coat color. This is common in a lot of “designer” dog breeds and some purebred dogs, including the Kerry Blue Terrier, Australian Cattle Dog, and Boston Terrier.

In some cases, blue or lilac colors are associated with a disease called color dilution alopecia. The puppies might be born with normal coat textures for the breed, but soon, their coat turns dry, dull, and thin, and they show marked reduced hair density between 3 and 12 months of age. They’re left with exposed patches of skin that would normally have hair for protection, but because they don’t, they can have skin issues in those areas.

Image Credit: Susan McQuade, Shutterstock

Will My Merle or Blue Dog Be Sick?

Not necessarily. These dogs may grow up to be healthy and escape the concerns surrounding their genetics.

The issue is larger than just your pup, however. Supporting a breeder who purposely prioritizes a rare or unique color to make a steep profit, rather than breeding to produce the best possible specimens of a breed in terms of health, conformation, and temperament, isn’t a breeder that should be supported. Every breeder has a responsibility to ensure their dogs live a happy, healthy life.

dogster face divider

Conclusion

Rare or unique dog colors and patterns can be part of a purebred dog’s standards. Unfortunately, these colors and patterns may come with health problems, which can be exacerbated by irresponsible breeding with the goal of producing rare and expensive puppies.

You don’t necessarily need to avoid any rare color like merle or blue but do your due diligence. Check into the color standards for your preferred breed and the genetic health concerns associated with them. You should also vet the breeder and make sure that they’re complying with local regulations, conducting genetic testing, and caring for their animals properly.


Featured Image Credit: Christian Kohlhausen, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Vizsla Pitbull Mix: Info, Pictures, Temperament & More

It can be a challenge to decide between two dog breeds when you love them both but aren’t ready to commit to owning...

3 Common Golden Retriever Color Types: Vet-Reviewed Info (With Pictures)

Golden Retrievers are famous for their long golden coats, but did you know they actually come in different colors? What’s interesting about these...

Do Dachshunds Like Water? Facts & FAQ

Dachshunds are extremely cute dogs that may be best known for their short legs and long bodies, giving them their nickname of wiener...

Why Does My Dog Steal My Clothes? 6 Likely Reasons & What to Do

Have you ever come home and found your favorite shoes getting chewed up by your beloved dog? Or did you think that the...

More related

How Much Exercise Does My Labradoodle Need? Vet-Verified Facts & Age Chart

Labradoodles are amazing dogs that are social, loving, and playful. Bringing one of these dogs into your home can open your world up...

9 Best High-Fiber Dog Foods in 2025 – Reviews & Top Picks

While dogs are often thought of as being mostly meat eaters, fiber also plays an important role in maintaining the good health of...

Are Cockapoos Good Family Dogs? Info, Care Tips & Considerations

When you’re looking for a new dog that will fit in with the family, there are many considerations that you need to make....

Can a Human Eat Dog Food? Vet-Approved Facts & FAQ

If you’re thinking about eating dog food because you’re out of options, we have some bad news for you. Dog food is not...

Keep reading

Can Dogs Eat Chick-fil-A? Vet-Reviewed Nutrition Facts & FAQ

Chick-fil-A has been serving up its famous chicken sandwiches and other tasty menu items since 1967. Founder Truett Cathy opened the first Chick-fil-A restaurant in Atlanta’s Greenbrier Shopping Center, and today, the restaurant is the largest quick-service chicken restaurant chain...

Can Dogs Eat Chick-fil-A

10 Best Dog Food Toppers in 2025: Reviews & Top Picks

Providing nutritious food and treats for your canine is vital for maintaining a healthy lifestyle. High-quality meals were once a niche market, but now, premium brand companies enjoy record sales. Although high-end pet food is typically produced with fewer fillers...

cute corgi dog eating dry dog food

10 Best Dog Foods for Pomeranians in 2025 – Reviews & Top Picks

Pomeranians have vastly different nutritional needs than dogs of larger breeds. Small dogs have higher metabolic rates than larger dogs and need to take in a sufficient number of calories to stay healthy. You might be surprised to learn that...

Pomeranian eating dry food from green bowl

Dr. Marty Dog Food vs The Farmer’s Dog (2025 Comparison): Pros, Cons & What to Choose

Pet food has come a long way, with many brands, options, and ingredients claiming to be this or that. Pet food manufacturers go the extra mile with their marketing efforts, claiming their brand is complete, balanced, and wholesome for your...

Dogster_Dog Food Dr. Marty VS The Farmer_s Dog

Can Dogs Eat Crawfish? Vet Reviewed Facts & FAQs

A crawfish, also known as a crayfish, rock lobster, and crawdad, is a well-known crustacean eaten worldwide. People of many cultures eat them; dogs can eat them, too, if they’re prepared properly. Some preparation methods can be dangerous for dogs,...

Can Dogs Eat_Crawfish

Black Gold Explorer Dog Food Review 2025: Recalls, Pros & Cons

Review Summary Black Gold Explorer is a pet food company that focuses exclusively on kibble for dogs. This company has shown a commitment for over 20 years to producing foods for sporting dogs to maintain their health, longevity, and energy...

Dogster_Black Gold Explorer Dog Food Review

Can Dogs Eat Pistachios? Vet-Approved Facts & FAQ

Pistachios are a favorite food among humans that are rich in protein, fiber, and vitamin B6. They are popular in salads, desserts, and just on their own as a snack. Wondering whether dogs can eat pistachio nuts may be a...

Can Dogs Eat Pistachios

Can Dogs Eat Mozzarella Sticks? Health & Safety Facts

Is any comfort food quite as comforting as a plate of ooey-gooey mozzarella sticks? We don’t think so! The next time you find yourself with a plate of perfectly golden mozzarella sticks, you might find your dog curiously sniffing around...

Can Dogs Eat_mozarella sticks