Moonstone Skin vs Burned Flesh

How close are they?

ΔE 6.5, close: similar, with a visible difference side by side. Burned Flesh is a little darker, warmer than Moonstone Skin.

Can I use Burned Flesh instead of Moonstone Skin?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Burned Flesh is a little darker, warmer than Moonstone Skin.

Can I use Moonstone Skin instead of Burned Flesh?

The same difference applies the other way round: Moonstone Skin is a little lighter, cooler.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.