Skip to Content

Blue French Bulldog – Breed Information & Facts: What makes French Bulldog Blue?

I was taken aback the first time I heard of a blue French bulldog. A blue dog, I reasoned, had to be either a humorous nick name with a fascinating narrative behind it or an unique and odd breed of dog. As I investigated French bull dogs, particularly blue Frenchies, as they are affectionately known, I realized that blue French bull dogs were truly rare.

They are sought for due to their scarcity and the dark blue grey overtones in their coat. Even yet, I believe it is their gorgeous big eyes, which make them adorable to look at, that make them valued and popular home companions. Their big eyes, which are sometimes brown and sometimes leaning towards a hazel green, normally evolve into a brown color as they grow out of puppyhood. They are more popular since they are unusual and born less frequently than other variations of French bull dogs.

Clarification of the Controversy

These magnificent, almost regal dogs and their pure bred bloodlines are unusual due to the diluted black gene they have, which according to the American Kennel Club breeding guidelines is not ideal for breeding. This was thought to be due to generation after generation of French bull dogs being inbred, and because of this line breeding over many years in the past when related dogs were bred together to generate the hue of the blue French blue dogs.

dark diluted recessive gene, as well as other recessive genes

Weak health may have resulted. There is no medically validated study or information to support the aforementioned notion. It no longer holds true because related blue french bull dogs are no longer bred with each other.

The gene pool is now large enough to support many healthy, unrelated blue French bulldogs that can be bred together to produce healthy blue babies. As a result, the health issues they have recently suffered are essentially the same as those confronted by other non-blue French bull dogs. So, as things have altered over time, the prevalent idea that puppies born from blue French bull dog lineages are born ill has shifted.

The Dilution Gene Dilemma

So, what’s the big deal about?

The blue French Bull dog’s BLUE coat is caused by a recessive black dilution gene (also known as the ‘black’ gene or the dilution gene).

This black dilution gene is responsible for the blue French bull dog’s gorgeous bluish grey coat.

So, if a blue French bull dog with the black gene from its parents is bred with another non-related blue French bull dog also carrying the black gene, the puppies in their litter will all be blue French bull dogs carrying the black dilution gene and will express their blue characteristics with their bluish coat. If a blue French bulldog containing the black gene is bred with a non-related non-blue French bulldog, it is possible that half of the puppies will be blue and will be carriers of the black recessive gene, expressing the traits of the bluish coat. Lastly

If two unrelated french bull dogs that do not have a blue coat but are both carriers of the black gene mate, it is possible that one-fourth of the puppies from their litter will be blue and will exhibit all of the traits of blue french bull dogs. In this instance, some of the puppies in the litter may be non-blue French bulldogs, while others may be carriers of the black dilution gene but lack the typical bluish grey coat.

This unusual breed of French bull dogs is gaining popularity, especially because they are now healthy blue French bull dogs with authentic pedigreed ancestry.

According to my understanding, the AKC will update its breeding requirements in the near future, and blue french bull dogs will qualify, since there are now many generations of healthy blue french bull dogs becoming healthier and healthier, raised by responsible breeders who no longer perform in line breeding. And if Hollywood actress Reese Witherspoon, who was named one of PEOPLE’s most beautiful women in 2016, is any indication, blue grey French bull dogs make excellent affectionate and attractive companions.