Paint in a single color. However, it is an interesting combination of different colors for the tank and rear fender.
I hope it will be helpful for your paint plan.
Since the paint on the tank was floating, rust was still generated when it was peeled off.
In particular, the back side is not accessible, so sandblast to remove rust. The bottom left photo is sandblasted.
The tank is navy blue metallic.
The rear fender is solid white.
The color of the tank is metallic navy blue.
I blew candy bar pull over it to give the color more depth.