ΔE 6.5, close: similar, with a visible difference side by side. Bone White is warmer than Screaming Skull.
✓ Herrick Games paint comparison chart lists these two as equivalents.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Bone White is warmer than Screaming Skull.
The same difference applies the other way round: Screaming Skull is 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 Screaming Skull on the colour wheel See Bone White on the colour wheel
All matches: Screaming Skull equivalents · Bone White equivalents