Blue is often used for service dogs or dogs in training, though it’s not a legal standard.
Service dogs assist people with disabilities by doing tasks like guiding the blind or detecting medical issues.
If you see a calm, focused dog in blue, avoid petting or distracting them. Therapy dogs, who comfort people in places like hospitals, may also wear blue but don’t have the same access rights.
Training dogs may wear blue gear, like a “Student Driver” sign, though some pets just wear it for style. Understanding gear colors helps people respect working dogs.
Other colors also signal meanings: yellow = needs space, red = do not pet, green = friendly or in training. So next time you see a dog in blue, consider the context—it might be working or just fashionable.