ΔE 13.8, fair: the same colour family, but not a straight swap. Trollslayer Orange is more muted, cooler than Lava Orange.
✓ Two Thin Coats comparison 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 14). Trollslayer Orange is more muted, cooler than Lava Orange.
The same difference applies the other way round: Lava Orange 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 Lava Orange on the colour wheel See Trollslayer Orange on the colour wheel
All matches: Lava Orange equivalents · Trollslayer Orange equivalents