Tanned Flesh vs Jasper Skin

How close are they?

ΔE 6.3, close: similar, with a visible difference side by side. Jasper Skin is a little lighter than Tanned Flesh.

Can I use Jasper Skin instead of Tanned Flesh?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Jasper Skin is a little lighter than Tanned Flesh.

Can I use Tanned Flesh instead of Jasper Skin?

The same difference applies the other way round: Tanned Flesh is a little darker.

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.