Menoth White Base vs Natural Flesh

How close are they?

ΔE 17.3, loose: different enough that you should pick on purpose. Natural Flesh is a little darker, warmer than Menoth White Base.

Can I use Natural Flesh instead of Menoth White Base?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Natural Flesh is a little darker, warmer than Menoth White Base.

Can I use Menoth White Base instead of Natural Flesh?

The same difference applies the other way round: Menoth White Base 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.