According to the CFA breed standard: blue, lighter shade preferred, one level tone from nose to tip of tail. Sound to the roots. A sound darker shade is more acceptable than an unsound lighter shade. Nose leather and paw pads: blue. Eye color: brilliant copper.
The blue Persian cat was once a very popular color. Sometimes people will refer to the blue Persian color as "gray" which is not the proper term.
The blue Persian cat is in the CFA Solid color division.
