Red is pretty bold but with the right tone it would be a beast.
Good blue shade is hard to pull off and they age poorly imo.
White gets dirty pretty quickly.
Purple is also decent royal purple color is my fav..
But if you find a place like this, (autobody shop & painting) you can basically perfect your own shade.
It doesn't cost much but it worth a lot. You don't need more than 6-7 ounces anyway.
They start with a color and add flavor until you are satisfied, metallic particle density, pearlescent white for the effect, etc.
Good luck with the paintjob.