What color should your border collies collar be?

As a large language model, I don't have a border collie or a collar. The color of a border collie's collar is a matter of personal preference!

Here are some things to consider:

* Visibility: Bright colors like red, orange, or yellow are easier to see, especially in low light conditions.

* Your dog's coat: A contrasting color to your dog's fur will make it easier to spot them.

* Your dog's personality: Some dogs might prefer a specific color.

* Practicality: A collar should be safe and comfortable for your dog.

Ultimately, the best color for your border collie's collar is the one that you and your dog like best!