Burnt Moss vs Ork Flesh

How close are they?

ΔE 15.8, loose: different enough that you should pick on purpose. Ork Flesh is noticeably darker, more saturated, warmer than Burnt Moss.

Can I use Ork Flesh instead of Burnt Moss?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Ork Flesh is noticeably darker, more saturated, warmer than Burnt Moss.

Can I use Burnt Moss instead of Ork Flesh?

The same difference applies the other way round: Burnt Moss is noticeably lighter, more muted, cooler.

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.