Barbarian Flesh vs Red Oxide Tint

How close are they?

ΔE 16.3, loose: different enough that you should pick on purpose. Red Oxide Tint is a little darker, much more muted than Barbarian Flesh.

Can I use Red Oxide Tint instead of Barbarian Flesh?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Red Oxide Tint is a little darker, much more muted than Barbarian Flesh.

Can I use Barbarian Flesh instead of Red Oxide Tint?

The same difference applies the other way round: Barbarian Flesh is a little lighter, much 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.