ΔE 12.8, fair: the same colour family, but not a straight swap. Fire Dragon Bright is a little lighter, more muted than Lava Orange.
✓ Army Painter Fanatic conversion chart lists these two as equivalents.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Fire Dragon Bright is a little lighter, more muted than Lava Orange.
The same difference applies the other way round: Lava Orange 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 Lava Orange on the colour wheel See Fire Dragon Bright on the colour wheel
All matches: Lava Orange equivalents · Fire Dragon Bright equivalents