ΔE 12.5, fair: the same colour family, but not a straight swap. Khardic Flesh is a little lighter, warmer than Topaz Skin.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Khardic Flesh is a little lighter, warmer than Topaz Skin.
The same difference applies the other way round: Topaz Skin is a little 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 Topaz Skin on the colour wheel See Khardic Flesh on the colour wheel
All matches: Topaz Skin equivalents · Khardic Flesh equivalents