ΔE 8.3, close: similar, with a visible difference side by side. 'Jack Bone is a little lighter than Hammerfall Khaki.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). 'Jack Bone is a little lighter than Hammerfall Khaki.
The same difference applies the other way round: Hammerfall Khaki is a little darker.
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 Hammerfall Khaki on the colour wheel See 'Jack Bone on the colour wheel
All matches: Hammerfall Khaki equivalents · 'Jack Bone equivalents