Red – Beware of the dog, and don’t get too close.

Orange – This dog does not get along well with other dogs.

Yellow – The dog is unpredictable and edgy. It could also mean that it’s looking for a new home.

Green – The dog has a friendly nature, and it’s okay to get close alone or with any animal.

Blue – The dog is a service animal. It’s training or working, so don’t disturb it.

White – The dog has difficulty hearing or seeing, or is completely blind/deaf.

Purple – Don’t feed anything to the dog.