ΔE 12.7, fair: the same colour family, but not a straight swap. Dusken Green is a little darker, cooler than Gordian Knot.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Dusken Green is a little darker, cooler than Gordian Knot.
The same difference applies the other way round: Gordian Knot is a little lighter, 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 Gordian Knot on the colour wheel See Dusken Green on the colour wheel
All matches: Gordian Knot equivalents · Dusken Green equivalents