Paint for Leader Class Optimus Prime

I recently discovered some annoying scratches on my Leader Class Optimus Prime. In his truck mode, the scratches are on his left fender where the flame pattern is painted. In his robot mode, the fender becomes the left calf.
The yellow paint is scratched off and it reveals red marks (which is the color of the plastic).
Does anyone know what paint I should use to touch up this part? What is the specific shade of yellow? What brand and type of paint (acrylic, spray)?
Where can I buy this paint?
Thanks.
The yellow paint is scratched off and it reveals red marks (which is the color of the plastic).
Does anyone know what paint I should use to touch up this part? What is the specific shade of yellow? What brand and type of paint (acrylic, spray)?
Where can I buy this paint?
Thanks.