Siberian Husky Color Genetics: Patterns, Eye Colors, and What Controls Them

Siberian Huskies are one of the most visually distinctive breeds — known for their wolf-like colouring, striking facial masks, and often piercing blue eyes. Their colour genetics involve multiple loci, and their eye colour genetics are partly controlled by a unique mechanism not seen in most breeds.

Husky Coat Colours

Black and White: Solid black topcoat with white underbelly and legs. These dogs are KB/- at the K locus, making the black dominant.

Grey and White: Often agouti (aw/aw) at the A locus — each individual hair is banded with black, grey, and cream. This produces the classic wolf-grey Husky.

Red and White: e/e at the E locus, preventing eumelanin expression and producing only phaeomelanin (red/copper tones). Red Huskies range from pale cream to deep copper.

Agouti: A darker, complex pattern where dogs appear almost wolf-like with rich banding. Typically aw/aw or Ay/aw combinations.

Sable: Ay allele producing darker-tipped guard hairs on a warm base.

White: Either e/e with extremely low phaeomelanin intensity, or S locus white spotting extending over most of the body.

Piebald and White Markings

Husky white markings — the classic white face mask blaze, white on the legs and belly — are produced partly by the S locus. The characteristic piebald patterns (saddle-back, mantle, etc.) in Huskies are among the most recognisable in dogdom.

Husky Eye Color

Siberian Huskies are known for blue eyes, brown eyes, bi-eyes (one blue, one brown), and parti eyes (both colours in the same iris). Husky eye colour has a partially different genetic basis than most breeds.

Recent research has identified a duplication in the ALX4 gene region on chromosome 18 that is strongly associated with blue eye colour in Siberian Huskies. This is separate from the merle-associated blue eyes seen in other breeds — Huskies do NOT carry merle. Their blue eyes are produced by a different mechanism.

No Merle in Siberian Huskies

It bears repeating: authentic Siberian Huskies do not carry the merle gene. Dogs marketed as "merle Huskies" are crosses with merle-carrying breeds. The AKC does not recognise merle in Siberian Huskies.

Health Considerations

White Huskies and those with very light pigmentation around the eyes should be BAER tested for congenital deafness. The ALX4 blue-eye variant in Huskies has not been associated with the same deafness risks as merle-related white in other breeds, but white-heavy dogs should still be evaluated.