ΔE 12.7, fair: the same colour family, but not a straight swap. Paratrooper Tan is a little lighter, warmer than Demon Red.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Paratrooper Tan is a little lighter, warmer than Demon Red.
The same difference applies the other way round: Demon Red is a little darker, 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 Demon Red on the colour wheel See Paratrooper Tan on the colour wheel
All matches: Demon Red equivalents · Paratrooper Tan equivalents