How about... not naming it! Using it in a farm with a multitude of other sheep, sorted out by color and gaining new colors with dyes, or breeding!

I'd name it jeb_

Dinnerbone i love upside down mobs

Grumm

Jeb_ it is

Mutton

Grumm is underrated :(

Puffy

The top should be jeb_

Grumm does what Dinnerbone does and vice versa.

Hank the Cowdog or just about any fictional dog’s name.