Intermediate Green vs Orruk Flesh

How close are they?

ΔE 6.4, close: similar, with a visible difference side by side. Orruk Flesh is a little darker, more saturated than Intermediate Green.

Can I use Orruk Flesh instead of Intermediate Green?

Usually, if you are not matching paint already on the model. Close match (ΔE 6). Orruk Flesh is a little darker, more saturated than Intermediate Green.

Can I use Intermediate Green instead of Orruk Flesh?

The same difference applies the other way round: Intermediate Green is a little lighter, 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.