Tag sure says its b3, but the paint on it looks like petty blue, two way different shades in my experience. I would likely paint it the correct b3, but I would get a pint made up (or less), shoot a card and see if you like it. If not, paint it what you like.
I have bought a few cars in spite of the color,.....and came to like all of them as they were, except for the BLACK ones. I will NEVER own a black car again.