ΔE 10.2, fair: the same colour family, but not a straight swap. Light Green RLM25 is a little lighter, more saturated, cooler than Dark Green Nakajima.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Light Green RLM25 is a little lighter, more saturated, cooler than Dark Green Nakajima.
The same difference applies the other way round: Dark Green Nakajima is a little darker, more muted, 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 Dark Green Nakajima on the colour wheel See Light Green RLM25 on the colour wheel
All matches: Dark Green Nakajima equivalents · Light Green RLM25 equivalents