ΔE 6.4, close: similar, with a visible difference side by side. Highlight Skin is a little lighter, cooler than Ryn Flesh.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Highlight Skin is a little lighter, cooler than Ryn Flesh.
The same difference applies the other way round: Ryn Flesh is a little darker, 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 Ryn Flesh on the colour wheel See Highlight Skin on the colour wheel
All matches: Ryn Flesh equivalents · Highlight Skin equivalents