ΔE 6.5, close: similar, with a visible difference side by side. Highlight Skin is a little darker, warmer than Linen White.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Highlight Skin is a little darker, warmer than Linen White.
The same difference applies the other way round: Linen White is a little lighter, 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 Linen White on the colour wheel See Highlight Skin on the colour wheel
All matches: Linen White equivalents · Highlight Skin equivalents