Check out
this thread.
There you will not find a RAL code, but I will try to translate a post, "andi63" has written there:
"
VW/Audi Titan Metallic LY7PI bought this spray at ATU (a german spare part market) to repair small scratches. I must say that it hits the point exactly.
But it is a based paint of two layer paint . After repairing it is a bit dull. With a clear coat on top the shine is back.
Of course, depending on age and fading can already be different...I can only recommend."