This picture shows the colors available in '79 (my year model). I recently purchased an '81 210 Brochure that may have similar paint codes listed for that year. No matter what I will post scans of that brochure as soon as I get it. They'll be posted on my website
Here down at the bottom of the page. It'll surely have several pictures of stock painted B310s of that year, maybe even all available colors. I'll try to post a message here when the scans are up on my website.
michael
PS. These are US/Canada spec. Not sure where you are but the colors available could be slightly different if it's not a North American car. Original literature, ads and brochures from your area is the only way to be sure. Well actually, the parts microfiche often shows paint touch-up colors that will list the correct color code. Anyway, I'm personally very interested in learning about original colors, options, features etc. Let me know if you find anything interesting.