ΔE 13.4, fair: the same colour family, but not a straight swap. Zandri Dust is noticeably darker 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 13). Zandri Dust is noticeably darker than German Sand Beige RAL 8031.
The same difference applies the other way round: German Sand Beige RAL 8031 is noticeably lighter.
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 Zandri Dust on the colour wheel
All matches: German Sand Beige RAL 8031 equivalents · Zandri Dust equivalents