ΔE 6.8, close: similar, with a visible difference side by side. Highlight Skin is more muted, warmer than Pearl. They are different kinds of paint: AK Interactive Pearl is a pearl paint and Vallejo Highlight Skin is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Highlight Skin is more muted, warmer than Pearl. They are different kinds of paint.
The same difference applies the other way round: Pearl is 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 Pearl on the colour wheel See Highlight Skin on the colour wheel
All matches: Pearl equivalents · Highlight Skin equivalents