There is no recipe for skin tones. Really matching any paint is the same regardless of color.
This type of question comes up a lot, and the real question is. "How do I match colors?"
Color has 3 properties:
Hue(color)
Value(lightness/darkness)
Chroma(saturation/intensity)
In the color wheel sample below is the round about area on the color wheel for a mid flesh tone.
Flesh tones are generally a base of white(which is why the color wheel in the picture is overlaid with a 33% white layer above it).
They average in the yellow/orange area but vary from person to person, hence there being no recipe for skin color.
Above, the single black dot is the rough area where to begin, which is red and yellow.
A pure red yellow mix is at its highest chroma value on the outer edge of the wheel in the yellow/orange range.
To knock down the chroma, add the complement, which is a blue(ish).
Blue has a value that is very dark, so add it slowly until the chroma is where you want it.
I am working on a tutorial based on color, but it may be a while until I get it done.
I know this is not the exact answer you were looking for, but if you know how to match paint color, it doesn't matter what brand of paint you have.
