ΔE 12.8, fair: the same colour family, but not a straight swap. Interior Grey Green is a little darker, more saturated, cooler than Rakarth Flesh.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Interior Grey Green is a little darker, more saturated, cooler than Rakarth Flesh.
The same difference applies the other way round: Rakarth Flesh is a little lighter, 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.
See Rakarth Flesh on the colour wheel See Interior Grey Green on the colour wheel
All matches: Rakarth Flesh equivalents · Interior Grey Green equivalents