He's a tabby and white for sure,it's easy to see the stripes and you could even call him a "tabby tuxedo" because of the color pattern. On my screen he appears to have dark grey stripes on a slightly lighter grey background, but it's possibly the color is off. Dark grey on lighter grey would make him a "blue" tabby (grey is called blue in the language of cat colors) He's also a "medium-haired" cat because his coat is neither long nor short, so technically he would be called a blue tabby and white domestic medium hair if you were showing him in a household pet class. If my monitor is off and he is actually brown with black stripes, they he would be a brown tabby and white. He is a very lovely cat and I love the medium haired cats.