Blue eye color in dogs is caused by decreased melanin production in the iris. This may be due to several genetic factors, which manifest differently in different breeds. Four more breeds are discussed in the second part of this article.

In some breeds, blue eyes are a permanent trait, while in others, they only appear with certain coat colors. There are also albino dogs with blue eyes, but this is the result of a complete lack of pigmentation.

1. Siberian Husky – an Arctic beauty

Perhaps the most famous blue-eyed breed, huskies piercing blue eyes are a legitimate breed characteristic and can be found even in dark-colored dogs.

• Features: blue eyes are allowed by the breed standard along with brown eyes; heterochromia (different eye colors) is also possible.
• Character: Energetic, friendly, and independent dogs with a strong hunting instinct.

2. Australian Shepherd – different colored eyes

Aussies often have blue eyes and a merle coat. This breed is known for its unique characteristic—frequent heterochromia.

• Traits: Blue eyes are usually associated with the merle gene. Completely blue eyes, partially blue eyes, or marbled irises are possible.
• Character: Intelligent, active working dogs that need constant employment.

3. Border Collie – an intellectual with a sapphire gaze

Like Australian Shepherds, blue eyes in Border Collies are usually associated with a merle coat. The breed standard allows blue eyes in merle-colored dogs.

• Features: blue eyes can be found in merle colored dogs, but are also rare in dogs of other colors.
• Temperament: Incredibly intelligent, energetic herding dogs with a strong need for mental and physical stimulation.

4. Weimaraner – Silver Ghost

A unique breed, puppies are born with sky-blue eyes that gradually change color as they mature. As adults, their eyes acquire a beautiful amber hue.

• Traits: Only puppies have blue eyes. Adult dogs have eyes in various shades of yellow and amber.
• Character: Energetic, intelligent dogs with a strong hunting instinct who need an active owner.

5. Dalmatian – a spotted aristocrat

Blue eyes are not standard in Dalmatians, but can be found in dogs with an extremely rare blue color (dilute black).

• Distinctions: Blue eyes are not recognized by the breed standard and are considered a fault for show dogs.
• Character: energetic, intelligent, and sensitive dogs with a good memory.

It’s important to understand that in some breeds, blue eyes may be associated with genetic traits that require attention. For example, merle-colored dogs (Australian Shepherds, Border Collies) may have a genetic condition called Merle syndrome, where breeding two merle-colored dogs results in deaf or blind puppies.