Autumn Sage vs Surfer Orc Flesh

How close are they?

ΔE 19.7, loose: different enough that you should pick on purpose. Surfer Orc Flesh is a little darker, much more saturated, cooler than Autumn Sage.

Can I use Surfer Orc Flesh instead of Autumn Sage?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Surfer Orc Flesh is a little darker, much more saturated, cooler than Autumn Sage.

Can I use Autumn Sage instead of Surfer Orc Flesh?

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