Yep, that's it. Good comparison. I'm not sure about OER but assume the same as YO being powdercoated gold and clear rather than paint for better wear. I'm sure once all on the car it will look perfect. It's mainly if you had one of each that the issue may come up!
Just swapping the tyres over or plans for fresh there also?
Random pic for sake of it. Here's a comparison pic I took 10 years ago of the new YO snowflakes with a Pontiac paint chart, albeit in the shade. It was a spur of the moment pic while dropping them into storage. The top Gold is 55 which they should be, the lower is 56. Yours are possibly closer to 50, which is in another pic I took. I need to retake them in sun.
YO Snowflake gold vs 55 Gold top 56 Burnished Gold lower by
Aus78Formula, on Flickr