Hello everyone

I have just become the proud owner of a 2014 Mk3 Leon FR184 and am having fun getting to know my new wheels. The car is fantastic but the previous owner may have had some difficulty parking because I’ve noticed a couple of little scratches/scuffs on the front and rear alloys on the passenger side. They are the 18″ Performance Machined alloy. I was about to do some repair work but I’m a little worried about putting paint on them as I’m not sure what would be a good colour match. It looks to me like they are somewhere between a grey and a silver. I was just wondering if anyone has any advice on repair of these wheels/what they used etc? Thanks very much in advance