Rapco makes a premixed, correct shade Strata Blue in an Alkyd enamel. It's a simple, single stage paint, just thin it and shoot it. Everything about it is good for the most part: cheap, easy to shoot, very correct color, covers really well (it's a thick paint with heavy solids), etc.
The biggest downside is that lie all Rapco/Gillespie paint, it just doesn't like being left out in the sun. If you can keep it in a carport or garage, it will last forever. It's not a catalyzed paint, so it doesn't harden and bond the way a 2 stage paint does.
Ord9 makes super high quality paints (they've now sold out to Midwest Military) but they aren't doing Strata Blue. Wish they would.
http://www.tm9ordnance.com/products.htm
You can also take the # NDT gave in the post above and have a local paint shop mix up paint.
Here's my buddy's USAF Dodge W200 I painted 2 years ago with Gillespie Strata Blue:
And here are some Strata Blue deuces and all these pictures are out of order because this site can't manage images at all.