ΔE 12.2, fair: the same colour family, but not a straight swap. Molten Orange is a little lighter, more saturated than Beast Brown.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Molten Orange is a little lighter, more saturated than Beast Brown.
The same difference applies the other way round: Beast Brown is a little darker, more muted.
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 Beast Brown on the colour wheel See Molten Orange on the colour wheel
All matches: Beast Brown equivalents · Molten Orange equivalents