What colour is Navy blue?
Humbrol say it is No 77 and as I'm convinced that the Pinnacle hull isn't black as shown on the kit manufacturers website, this should be right.
Trouble is, the colour on the real boat looks different in different lighting.
I'm assuming there wasn't a re-paint between these two photos of course.
Anyway, for no other reason that I'd got a particularly good pot of enamel, great coverage and flow, the hull goes Humbrol Navy. To be fair, a coat of satin varnish does bring it alive. It's still better than the colour Billings use on their model.