ΔE 10.2, fair: the same colour family, but not a straight swap. Hemp BS4800/10B21 is cooler than British Camo Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Hemp BS4800/10B21 is cooler than British Camo Green.
The same difference applies the other way round: British Camo Green is warmer.
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 British Camo Green on the colour wheel See Hemp BS4800/10B21 on the colour wheel
All matches: British Camo Green equivalents · Hemp BS4800/10B21 equivalents