Looking at this and this, what is the difference between these two colors? I had my roof wrapped in gloss black and looking for the best option to accent that...but at the same time, now that I think about it, I also don't want it to look too off from the black part of the mirror housing (not sure what it's actually called, but I've circled it in red in this pic).

Thanks!

 

212 is Obsidian, and it is a solid black.
217 is Starlight Black, and it contains metallic flake.

Jeff