ΔE 13.9, fair: the same colour family, but not a straight swap. Burnt Umber is noticeably darker, warmer than Typhus Corrosion.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Burnt Umber is noticeably darker, warmer than Typhus Corrosion.
The same difference applies the other way round: Typhus Corrosion is noticeably lighter, 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 Typhus Corrosion on the colour wheel See Burnt Umber on the colour wheel
All matches: Typhus Corrosion equivalents · Burnt Umber equivalents