Oppes

I bought last autumn old RD 125 LC 1984, 21.1 hp/15.5 kW. It was been two years under tarpaulin. I replaced oil and cooling liqued and bought new accu. The motor is OK.The fuel tank and frame is black and rear sub-frame is like silver. Can anybody say certainly original paint codes or what kind of paint I can use if I will restrore my bike? Regards Seppo