ΔE 10.4, fair: the same colour family, but not a straight swap. Webbing Khaki is more saturated than German Sand Beige RAL 8031.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Webbing Khaki is more saturated than German Sand Beige RAL 8031.
The same difference applies the other way round: German Sand Beige RAL 8031 is more muted.
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 German Sand Beige RAL 8031 on the colour wheel See Webbing Khaki on the colour wheel
All matches: German Sand Beige RAL 8031 equivalents · Webbing Khaki equivalents