Leaning Pelt here but not MCS or MCR. MCR & MCS I believe has to have @ least 3 opaque colors (inc. white) besides the transp. base. B,Y,W, : Blue, Yellow, White - R,B,W, : Red, Blue, White - B,Y,G,W : Blue, Yellow, Green, White etc.....sometimes more and on rare occasioned I've seen oxblood added to the mix on a few MCS.