ΔE 15.5, loose: different enough that you should pick on purpose. Bright Shadow Flesh is much more saturated, warmer than Tourmaline Skin.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Bright Shadow Flesh is much more saturated, warmer than Tourmaline Skin.
The same difference applies the other way round: Tourmaline Skin is much 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 Tourmaline Skin on the colour wheel See Bright Shadow Flesh on the colour wheel
All matches: Tourmaline Skin equivalents · Bright Shadow Flesh equivalents