ΔE 12.9, fair: the same colour family, but not a straight swap. Rucksack Tan is a little darker, more saturated, cooler than Hemp Rope.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Rucksack Tan is a little darker, more saturated, cooler than Hemp Rope.
The same difference applies the other way round: Hemp Rope is a little lighter, more muted, 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 Hemp Rope on the colour wheel See Rucksack Tan on the colour wheel
All matches: Hemp Rope equivalents · Rucksack Tan equivalents