I have read that a digital darkroom should be painted Munsell 8 gray. What should I tell my paint dealer so he can mix a color close to this?
You could just tell him “light gray” or look at their color cards and select the one you are trying to match. That would probably be good enough given the variation in lighting and geometry in any given room. However, if you want to be more precise and accurate, you could tell him to match the CIELAB values of L* = 80, a*=0 and b*=0. I would think they can do that with their color matching system (or they could measure some of their gray color cards to find the closest one). Another alternative would be to purchase a sample of Munsell N8 from GretagMacbeth and then take that in to be matched.
