ΔE 10.5, fair: the same colour family, but not a straight swap. Gengis Khaki is a little darker, more muted, warmer than Thicket Grove.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Gengis Khaki is a little darker, more muted, warmer than Thicket Grove.
The same difference applies the other way round: Thicket Grove is a little lighter, more saturated, 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 Thicket Grove on the colour wheel See Gengis Khaki on the colour wheel
All matches: Thicket Grove equivalents · Gengis Khaki equivalents