ΔE 11.7, fair: the same colour family, but not a straight swap. Orruk Flesh is a little darker, warmer than Greenskin Punch.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Orruk Flesh is a little darker, warmer than Greenskin Punch.
The same difference applies the other way round: Greenskin Punch is a little lighter, 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.
See Greenskin Punch on the colour wheel See Orruk Flesh on the colour wheel
All matches: Greenskin Punch equivalents · Orruk Flesh equivalents