Among cat aficionados, gray cats are often called blue ... Of course, the brown tabby coat color can vary between classic, mackerel, spotted, and ticked patterns, as well as unique variations ...

Ryan Sweeney told Newsweek that he and his wife have five cats in their home: two orange tabbies Boots and Jack, one gray tabby kitten Calypso, one black kitten Noir, and a grumpy old lady brown ...