What do all the colors mean?

[laurenmcoakley]

I haven't seen it in any back posts, but I could certainly be wrong... 
Just wondering if anyone else has noticed this and/or amybe knows what 
it might mean...

It seems that in the films, Harry wears a lot of blue, Ron wears red 
and Hermione wears pink.  Not all of the time, like, in GoF, Ron wears 
a blue striped baja-type pullover (over a red t-shirt, of course).  
And sometimes Harry has like a heather-gray sweatshirt, but usually 
they seem to follow this color-coded-ness.  Even Hermione's Yule Ball 
dress, which was described as turquoise in the book, was pink.

Anyone else notice this?

Lauren