Barnesie

I am hoping someone can help me with this. I have a couple of rims - silver not chrome - on the GX that have a few scratches and rock chips that I would like to touch up. Research on the internet yields no specific product that is made to match up the color. I have read on other posts that some have had luck with certain touch up colors from other makes and models of cars. Does anyone have any personal experience with touching up silver rims on their GX? Thanks.