Well, there are a couple things. There is a photoshop thread with just about every colour out there. And there is another thread with a semi accurate list of Camaro colours, with renderings of each. I say semi-accurate because some won't be offered and there will be some others that aren't on the list.
Note, if I've gotten any facts wrong in the above, just ignore any points I made with them
don't believe a thing you read about the next gen Camaro -- as history has proven time and time again:
WE DO NOT TALK ABOUT FUTURE PRODUCT PLANS PERIOD FbodFather
Camaro5 Fest sub-forum