The RGB Collar is a common pet accessory in Adopt Me!. It was released on January 27, 2022, during the Task Board Update. It can be obtained by opening an RGB Reward Box at a 44% chance or through trading.
The RGB Collar features a black circular band adorned with rainbow stripes. On the front of the collar, there is a black tag with a rainbow paw print, and on the back, there is a silver clip. This pet accessory is worn around a pet's neck.