ΔE 14.6, fair: the same colour family, but not a straight swap. Natural Flesh is a little darker, more saturated, warmer than Pastel Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Natural Flesh is a little darker, more saturated, warmer than Pastel Yellow.
The same difference applies the other way round: Pastel Yellow is a little lighter, more muted, 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 Pastel Yellow on the colour wheel See Natural Flesh on the colour wheel
All matches: Pastel Yellow equivalents · Natural Flesh equivalents