Aggaros Dunes vs Shadow Flesh

How close are they?

ΔE 32.1, loose: different enough that you should pick on purpose. Shadow Flesh is a little darker, more muted than Aggaros Dunes.

Can I use Shadow Flesh instead of Aggaros Dunes?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 32). Shadow Flesh is a little darker, more muted than Aggaros Dunes.

Can I use Aggaros Dunes instead of Shadow Flesh?

The same difference applies the other way round: Aggaros Dunes is a little lighter, more saturated.

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.