ΔE 9.2, close: similar, with a visible difference side by side. Frozen Flesh is more saturated, cooler than Carnelian Skin.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Frozen Flesh is more saturated, cooler than Carnelian Skin.
The same difference applies the other way round: Carnelian Skin is more muted, warmer.
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 Carnelian Skin on the colour wheel See Frozen Flesh on the colour wheel
All matches: Carnelian Skin equivalents · Frozen Flesh equivalents