ΔE 8.2, close: similar, with a visible difference side by side. Elf Skin Tone is a little darker, more muted, warmer than Nomad Flesh.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Elf Skin Tone is a little darker, more muted, warmer than Nomad Flesh.
The same difference applies the other way round: Nomad Flesh is a little lighter, more saturated, 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 Nomad Flesh on the colour wheel See Elf Skin Tone on the colour wheel
All matches: Nomad Flesh equivalents · Elf Skin Tone equivalents