ΔE 12.5, fair: the same colour family, but not a straight swap. Burnt Umber is a little lighter, more muted than Corvus Black.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Burnt Umber is a little lighter, more muted than Corvus Black.
The same difference applies the other way round: Corvus Black is a little darker, 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 Corvus Black on the colour wheel See Burnt Umber on the colour wheel
All matches: Corvus Black equivalents · Burnt Umber equivalents