According to several cat association standards, the Russian Blue breed must have a vivid green eye color. Many Russian Blue kitties are born with yellow eyes that slowly transition to their mature adult green color. Around four months of age is when pet parents often begin to notice the
ring of green coloring . But genetics can be tricky. A small percentage of cats may have an eye color that leans more blue or more orange, and that’s okay. It’s possible a Russian Blue cat may have blue eyes. While the cat may be disqualified from breed showings, they’ll still be a great pet.