Color Question

I've got an '87 Dodge in a navy blue/purplish color. Do any of you know what the color is called? Also, do you know what the color code may be? I have a big white fiberglass cap and I'd like to find some paint to color it the same as the body, because I don't like how it looks white. Hopefully I'll be painting the whole body soon but no money and no tools is a little problematic.

On the firewall on the pass side there is a metal plate riveted on, there is a color code on there.

I found B76: Baltic Blue Metallic. Thanks!

Edit: They use the color now, and it's called Baltic Blue. In 1987, B76 was Twilight Blue.