The Russian Blue Cat (Russian: Русская голубая кошка, romanized: Russkaya golubaya koshka), commonly referred to as just Russian Blue, is a cat breed with colors that vary from a light shimmering silver to a darker, slate grey. The short, dense coat, which stands out from the body, has been the breed's hallmark for more than a century. The Russian Blue has bright green eyes, pinkish lavender or mauve paws, two layers of short thick fur, and a blue-grey-black coat. The color is a bluish-gray that is the dilute expression of the black gene. (Source: Wikipedia.org, CC BY-SA)