ΔE 14.3, fair: the same colour family, but not a straight swap. Rough Iron is a little lighter, much more muted than Burnt Iron.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Rough Iron is a little lighter, much more muted than Burnt Iron.
The same difference applies the other way round: Burnt Iron is a little darker, much 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 Burnt Iron on the colour wheel See Rough Iron on the colour wheel
All matches: Burnt Iron equivalents · Rough Iron equivalents