Blue (Gray) Boston Terrier Puppies

A blue Boston Terrier, sometimes called a gray or grey Boston Terrier, has a slate-gray coat, a gray nose and the breed's familiar white markings. The color comes from a recessive dilute gene that lightens black pigment to blue, and a puppy has to inherit it from both parents.

Blue is not one of the colors in the AKC breed standard, so blue Bostons are not shown in conformation. They are still purebred Boston Terriers, with the same size, temperament and personality as a black and white.

Honest note: some dogs with dilute coats can develop color dilution alopecia, which causes thinning hair or a dry, flaky coat. Ask us about the parents' coat history and keep up good skin and coat care.

Blue & White Boston Terrier FAQ

Are blue Boston Terriers purebred?

Yes. Blue is a dilute coat color within the breed. It is outside the AKC show standard, but that doesn't make the dog any less a Boston Terrier.

Is a gray Boston Terrier the same as a blue one?

Yes. "Blue" is the breeders' name for the dilute gray coat, so gray, grey and blue Boston Terriers are the same color.

Do blue Boston Terrier puppies have blue eyes?

All puppies are born with blue-gray eyes that usually darken by 8 to 12 weeks. Adult eye color depends on genetics.

Compare every coat in our Boston Terrier colors guide.