Rare violet eyes (a genetic mutation called Alexandria's Genesis) Whoops! Alexandria's Genesis is a sci-fi thing, not real. These eyes are prob fake. Violet eyes are either seen in incomplete albinism or are trick of the light with deep blue eyes.
The Debelius' Reef Lobster, also known as the Purple/Orange Reef Lobster, has a white to lavender body, with orange and violet spots. Description from pinterest.com. I searched for this on bing.com/images