ΔE 14.9, fair: the same colour family, but not a straight swap. Scrofulous Brown is noticeably darker, more muted than Skulker Yellow.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Scrofulous Brown is noticeably darker, more muted than Skulker Yellow.
The same difference applies the other way round: Skulker Yellow is noticeably lighter, 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 Skulker Yellow on the colour wheel See Scrofulous Brown on the colour wheel
All matches: Skulker Yellow equivalents · Scrofulous Brown equivalents