Kiwi Grip:

I used a custom color, but I could have easily used their standard...I think I ended up about the same place. I did find it quite easy to color by the local Sherwin Williams store (not home depot!). The guy spent 10 minutes punching his calculator, then blended it up purposefully.

I bought white for a reason: painting my headliner inside the boat. I did my best to put a decent surface on the factory roughness...made worse by fiddling through the last 40 years...then rolled on a couple of coats of white Kiwi Grip using a foam roller. The idea was to make the surface uniformly rough so that the whoppies weren't as obvious. This is a subjective opinion, but I'd say it worked rather well. Looks better than the factory original white-grey-black fleck budget housepaint, certainly.