ΔE 13.1, fair: the same colour family, but not a straight swap. Arcane Gold is more muted, cooler than Molten Bronze.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Arcane Gold is more muted, cooler than Molten Bronze.
The same difference applies the other way round: Molten Bronze is more saturated, warmer.
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 Molten Bronze on the colour wheel See Arcane Gold on the colour wheel
All matches: Molten Bronze equivalents · Arcane Gold equivalents