ΔE 15.3, loose: different enough that you should pick on purpose. Pumpkin is a little lighter, more saturated than Nomad Flesh.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Pumpkin is a little lighter, more saturated than Nomad Flesh.
The same difference applies the other way round: Nomad Flesh is a little darker, 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.
See Nomad Flesh on the colour wheel See Pumpkin on the colour wheel
All matches: Nomad Flesh equivalents · Pumpkin equivalents