ΔE 14.1, fair: the same colour family, but not a straight swap. Dark Green Nakajima is a little darker, much more saturated than Dawnstone.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Dark Green Nakajima is a little darker, much more saturated than Dawnstone.
The same difference applies the other way round: Dawnstone is a little lighter, much more muted.
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 Dawnstone on the colour wheel See Dark Green Nakajima on the colour wheel
All matches: Dawnstone equivalents · Dark Green Nakajima equivalents