HRAY,
You may be able to get an actual color sample from the supplier. I know you can from certain paint (house paint) companies. That would atleast give you a better idea than those photographic samples do.
There is a local shop here and on their website they have a lot of DIY info for the heat coatings. The owner's name is Alan, a real nice guy to talk to. Might be worth looking
at.
www.xtremeperformanceheatcoatings.com
John