They have what are called alternate colors.
Depending on what factory it came out of, what year it was painted, how much fade due to the sun, a code matched paint will most likely not exactly match, and that is why they have 4 or more alternate colors.
When I went to go check on my car on saturday, he wanted me to pick out a color for the car. The one that he matched with the factory code was not even close. I ended up going with alternate number 2, as it looked to be the closest match.
We will see.... I am leaving right now to go pick it up.
"I believe that banking institutions are more dangerous to our liberties than standing armies. If the American people ever allow private banks to control the issue of their currency, first by inflation, then by deflation, the banks and corporations that will grow up around the banks will deprive the people of all property until their children wake-up homeless on the continent their fathers conquered."
-Thomas Jefferson 1802