Australian cattle dog, also called blue heeler, has a blue coat (solid, mottled, or speckled) and may have black or tan markings. Recognized for their herding abilities.
Kerry blue terrier: One color - blue, with varying shades. Unique curly coat, dark accents possible. Puppies born black, change to blue by 18 months.
Weimaraners: Usually steely gray due to dilute brown coat gene. Some have black dilute gene, becoming dark gray/blue. Blue-coated Weimaraners disqualified but admired for their athletic
Chihuahua, one of the smallest breeds, comes in various coat colors, including rare blue. Solid or combined with tan, white, fawn, or brown markings in both short and long-haired Chihuahuas.
Bearded Collie: Shaggy coat in various colors, including blue. Solid body, white markings on face, chest, legs, and tail. Blue pups darken to lighter shades as they grow.
Boston Terrier: Typically black-and-white "tuxedo" coat. Rare recessive red or blue occurs; blue not accepted by AKC. Blue may look blue, silver, or gray.
Italian Greyhound: Graceful with long legs and petite body. Not exclusive, but can have a blue coat from the dilute black gene, appearing dark gray with a blue cast.
Blue Lacy: Rare breed, Texas state dog. Developed for herding by Lacy brothers in 1800s. Carries recessive gene for blue coat, also produces red, cream, or tricolor pups. Intelligent and skilled at work.
Rare blue dog breed, developed by Lacy brothers in 1800s Texas. Not AKC-recognized but Texas' state dog. Carries recessive blue coat gene, can produce red, cream, or tricolor pups.
Chinese Shar-Pei: Known for wrinkles, comes in various colors, including blue. Coat can be solid or sable. Blue shades vary, with possible shading on back and ears. All have blue-black tongue.