Barbarian Flesh vs Evil Eye Red

How close are they?

ΔE 21.2, loose: different enough that you should pick on purpose. Evil Eye Red is noticeably darker, more saturated, cooler than Barbarian Flesh.

Can I use Evil Eye Red instead of Barbarian Flesh?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Evil Eye Red is noticeably darker, more saturated, cooler than Barbarian Flesh.

Can I use Barbarian Flesh instead of Evil Eye Red?

The same difference applies the other way round: Barbarian Flesh is noticeably lighter, more muted, warmer.

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.