ΔE 16.0, loose: different enough that you should pick on purpose. Kislev Flesh is noticeably lighter, warmer than Jasper Skin.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Kislev Flesh is noticeably lighter, warmer than Jasper Skin.
The same difference applies the other way round: Jasper Skin is noticeably darker, 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 Jasper Skin on the colour wheel See Kislev Flesh on the colour wheel
All matches: Jasper Skin equivalents · Kislev Flesh equivalents