I sort of disagree with you all. Paint specifications in kits are really unreliable. First of all, in cases like Revell they'll be Revell paints. And then companies like Trumpeter make it up.
For a while the Stockholm charts were held as a standard, but from a lot of experience using them, they are best compromises, often involve mixing, and unless you have access to Humbrol, not very helpful. I see a lot of time wasted trying to get a chart match to something, only to find its a mismatch of a mismatch.
I think the best way is to work backwards from the real thing. Go online and do some searching. You will get a bunch of links to all of the various hobby forums out there, and a lot of discussion about what paints are considered the best matches for what projects.
Good luck, and "painted to look like the box" is not as important as "painted to look like the real thing".