ΔE 15.0, fair: the same colour family, but not a straight swap. Quinacridone Burnt Orange is a little lighter, more saturated, warmer than Khorne Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Quinacridone Burnt Orange is a little lighter, more saturated, warmer than Khorne Red.
The same difference applies the other way round: Khorne Red is a little darker, more muted, cooler.
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 Khorne Red on the colour wheel See Quinacridone Burnt Orange on the colour wheel
All matches: Khorne Red equivalents · Quinacridone Burnt Orange equivalents