Just had my 706M's powercoated. "
Ultra Charcoal" in high gloss. (PMB-5531)
http://www.prismaticpowders.com is the supplier.
Aside from the poor resolution, I agree with Velon's above post on how wheels shift in color in different light. That very point made it tricky to select the right color IMO. Just mounting the wheels on tires seemed to shift the color somewhat (darker in the spokes).
Once I get the wheels on next month, I'll get a better idea and forward pics. Not completely sold on the color at this point.