ΔE 11.3, fair: the same colour family, but not a straight swap. Forest Skin is noticeably darker, warmer than Warm Skin.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Forest Skin is noticeably darker, warmer than Warm Skin.
The same difference applies the other way round: Warm Skin is noticeably 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 Warm Skin on the colour wheel See Forest Skin on the colour wheel
All matches: Warm Skin equivalents · Forest Skin equivalents