The pink parts, rear grab bar, intake vents, are not going to "hold" the paint over time. As for the color, I don't know. Since they were not a painted part I don't think there would be any code to refer to. Some shops can use a canera/scanner tool to try and match a color if you bring the part in.
I'm not a paint expert though. I know the rear bar, handle bar cover and grips all deteriorated on my machine. The grips broke down, everything had black stains that would not come out. I used the "plastic dip" brand spray paint to make them black, but as said, it rubs off pretty easy.
Where I live function takes priority of looks so I'm not the best source for restoration advice, just passing on my experience.
Good luck.