ΔE 13.7, fair: the same colour family, but not a straight swap. Elf Skin Tone is a little darker, warmer than Seven Pillars of Wisdom.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Elf Skin Tone is a little darker, warmer than Seven Pillars of Wisdom.
The same difference applies the other way round: Seven Pillars of Wisdom 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 Seven Pillars of Wisdom on the colour wheel See Elf Skin Tone on the colour wheel
All matches: Seven Pillars of Wisdom equivalents · Elf Skin Tone equivalents