ΔE 8.4, close: similar, with a visible difference side by side. Senshi Skin is a little darker, cooler than Basic Skin Tone.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Senshi Skin is a little darker, cooler than Basic Skin Tone.
The same difference applies the other way round: Basic Skin Tone is a little lighter, 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 Basic Skin Tone on the colour wheel See Senshi Skin on the colour wheel
All matches: Basic Skin Tone equivalents · Senshi Skin equivalents