ΔE 9.9, close: similar, with a visible difference side by side. Kronos Flesh is a little lighter, more muted, warmer than Karak Stone.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Kronos Flesh is a little lighter, more muted, warmer than Karak Stone.
The same difference applies the other way round: Karak Stone is a little darker, more saturated, 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 Karak Stone on the colour wheel See Kronos Flesh on the colour wheel
All matches: Karak Stone equivalents · Kronos Flesh equivalents