ΔE 12.8, fair: the same colour family, but not a straight swap. Paratrooper Tan is more muted than RAL 8020 Braun.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Paratrooper Tan is more muted than RAL 8020 Braun.
The same difference applies the other way round: RAL 8020 Braun is 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 RAL 8020 Braun on the colour wheel See Paratrooper Tan on the colour wheel
All matches: RAL 8020 Braun equivalents · Paratrooper Tan equivalents