Color Names

I've taken about an hour reading rules, help, q and a and the like to try and find my answer but couldn't. Sorry.
There are letters next to every player name representing what I think is the color they hold.
My question is this: [color=#4040BF]What are the official 12 colors.[/color]
As well, I was wondering why there is so much confusion regarding color names. I've heard grey, slate and silver for the same color. Blue and light blue, etc. When it means so much in terms of communication, why aren't these 'official' colors in our faces a bit more. As I said, I just spent a full hour and couldn't find a thing on it (I'll take part of the blame cause i'm certain it's here somewhere).
Thanks in advance for any and all responses (unless you disagree with something I said
)
There are letters next to every player name representing what I think is the color they hold.
My question is this: [color=#4040BF]What are the official 12 colors.[/color]
As well, I was wondering why there is so much confusion regarding color names. I've heard grey, slate and silver for the same color. Blue and light blue, etc. When it means so much in terms of communication, why aren't these 'official' colors in our faces a bit more. As I said, I just spent a full hour and couldn't find a thing on it (I'll take part of the blame cause i'm certain it's here somewhere).
Thanks in advance for any and all responses (unless you disagree with something I said
