Both colours are Greys....the lighter 75 grey Violet, the darker 74 grey Green...and both colours have been mottled in their application so the darker appears lighter as if the 75 has been oversprayed on to it, but it hasn't.....you will see a further change in appearance once the gloss goes on.....
The impression is to get a slightly irregular spray application like someone would apply the paint with a spray gun....up on the wing, but like I said the gloss changes it again...