I had an orange cat named Milo. No blue cats, yet.
Reservoir Dogs
Yeah yeah, I know. No "Mr. Pink," "Mr. Brown," or "Mr. White," either.
Mr. Grey and Mr. Black is the result of me being too lazy to think of official names anymore. In "person" I don't even call them those very often...just "hey hon, looklook, black kitty is being cute again" or "Such a beggar, kittah want some tweets? Huh? Of course you do. Tweetstweets, Furface always wants some tweets."
...what is it about animals that makes so many of us talk like that.
Edit: I could call one FuzzyPants and the other FuzzyButt, but ... nah.
Yeah, my cats have names but I rarely use them in favour of whatever comes up. Common terms they respond to more than their names at this point: Engelbert Humperdinck, Doctor Droolababble and Binkulinus the Third of Poofington.