Johns 66

[Johns 66]

Ok..Need some help here....I have searched many pages and am just about googled out.

I am searching for the correct paint combination for my truck.

The trim tag says 521 which I found is white....what I am looking for is the secondary, 2 tone , paint code...more specifically I am looking for the color of the paint that goes in between the side molding....

I have seen a lot of different ones but don't know if they are correct when it comes to white....

Also I read somewhere that the tailgate letters were black on all trucks or maybe its just the white trucks.

What I am wanting to know is if this is correct or someone just painted it this way.