205 gti sorrento green possible paint/ originality issues

[The AJP Griff]

Hi, wonder if someone can help me a bit quick please? I need to know the paint code location on a 1990 205gti and also when the colour is sorrento green if it is normal to have white/cream colour under the paint where it chips or wears at kick plates etc. It looks odd to have a light colour like this under the dark green paint and i dont know where the code is located to verify?

[The AJP Griff]

Thanks for the replies, all sorted :-);