Barbarian Flesh vs Pumpkin

How close are they?

ΔE 19.0, loose: different enough that you should pick on purpose. Pumpkin is a little darker, much more saturated than Barbarian Flesh.

Can I use Pumpkin instead of Barbarian Flesh?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Pumpkin is a little darker, much more saturated than Barbarian Flesh.

Can I use Barbarian Flesh instead of Pumpkin?

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

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.