ΔE 10.9, fair: the same colour family, but not a straight swap. Heretic Turquoise is a little darker, more saturated, cooler than Burnt Moss.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Heretic Turquoise is a little darker, more saturated, cooler than Burnt Moss.
The same difference applies the other way round: Burnt Moss is a little lighter, more muted, 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 Burnt Moss on the colour wheel See Heretic Turquoise on the colour wheel
All matches: Burnt Moss equivalents · Heretic Turquoise equivalents