Why are the last names Brown, Black, White, Gray and Green common, while other colors are not for last names?

I've known of a Dr. Black, Ms. White, my uncle is Mr. Green and I can recall a few Grays or Greys but I have never come across a Mr. Pink or Mrs. Orange. Why?

Why are the last names Brown, Black, White, Gray and Green common, while other colors are not for last names?
Because nothing really rhymes with "orange".


Imagine how frightful that would be when writing a poem!





EDIT:


I suddenly thought of something.


Obviously someone made up the system of surnames, or a group of people just decided to give themselves surnames.


I guess those people just liked the colors brown, black, white, gray, and green more than pink or orange.
Reply:Rose is a last name. In French there are names like Larose, Latulipe, Bouquet, Lafleur (flower), etc.


And how about William of Orange?


In German, Blau (blue) is a family name.
Reply:I've heard of a couple of Lavenders. lol Who knows. Good luck on finding your answer.
Reply:cause those colors are not last names. Plus who would want a last name be pink or purple or something