ΔE 8.8, close: similar, with a visible difference side by side. Banshee Brown is a little lighter, more muted than Sunny Skintone.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Banshee Brown is a little lighter, more muted than Sunny Skintone.
The same difference applies the other way round: Sunny Skintone is a little darker, more saturated.
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 Sunny Skintone on the colour wheel See Banshee Brown on the colour wheel
All matches: Sunny Skintone equivalents · Banshee Brown equivalents