ΔE 13.1, fair: the same colour family, but not a straight swap. Gorgon Brown is noticeably lighter than Mournfang Brown.
✓ Two Thin Coats comparison chart lists these two as equivalents.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Gorgon Brown is noticeably lighter than Mournfang Brown.
The same difference applies the other way round: Mournfang Brown is noticeably darker.
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 Mournfang Brown on the colour wheel See Gorgon Brown on the colour wheel
All matches: Mournfang Brown equivalents · Gorgon Brown equivalents