Winsor and Newton Sap Green Syn. Under-tone is adding clear. Mass-tone is thick out of the tube. Transparent is clear like colored glass. Translucent is floating colloidal compounds of colored elements.
Milk is translucent.
Opaque is dense and light blocking, like a rock. Next to t he center core is ring1, t he darkes t shade of any co lor. Rin g 12 is th e outermo st ring. The second number of the imag e is the position of the color pig ment in t he arc.