ΔE 8.4, close: similar, with a visible difference side by side. Amber Green is more saturated, warmer than Gordian Knot.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Amber Green is more saturated, warmer than Gordian Knot.
The same difference applies the other way round: Gordian Knot is more muted, cooler.
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 Amber Green on the colour wheel
All matches: Gordian Knot equivalents · Amber Green equivalents