ΔE 7.2, close: similar, with a visible difference side by side. Light Green RLM25 is a little lighter, warmer than Legion Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Light Green RLM25 is a little lighter, warmer than Legion Green.
The same difference applies the other way round: Legion Green is a little darker, 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 Legion Green on the colour wheel See Light Green RLM25 on the colour wheel
All matches: Legion Green equivalents · Light Green RLM25 equivalents