ΔE 10.6, fair: the same colour family, but not a straight swap. Vulcan Orange is a little darker, more muted than Demigod Flames.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Vulcan Orange is a little darker, more muted than Demigod Flames.
The same difference applies the other way round: Demigod Flames is a little lighter, 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 Demigod Flames on the colour wheel See Vulcan Orange on the colour wheel
All matches: Demigod Flames equivalents · Vulcan Orange equivalents