ΔE 12.3, fair: the same colour family, but not a straight swap. Screaming Skull is noticeably darker than Vanilla.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Screaming Skull is noticeably darker than Vanilla.
The same difference applies the other way round: Vanilla is noticeably lighter.
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 Vanilla on the colour wheel See Screaming Skull on the colour wheel
All matches: Vanilla equivalents · Screaming Skull equivalents