Mixing recipes
How to mix the colors painters ask for
Each recipe gives the tubes and the whole parts, then the color of the pile after every paint goes in, so you can tell early if you have drifted. Most use a common 10-tube box. The ones that need a specialist pigment say so.
Every mix was computed by Masstone's engine from spectral reflectance, not by averaging screen colors. The same engine runs in the app, where it works from the paints you actually own.