ΔE 13.7, fair: the same colour family, but not a straight swap. Mortarion Green Clear is noticeably darker, more muted than Light Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Mortarion Green Clear is noticeably darker, more muted than Light Green.
The same difference applies the other way round: Light Green is noticeably lighter, more saturated.
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 Light Green on the colour wheel See Mortarion Green Clear on the colour wheel
All matches: Light Green equivalents · Mortarion Green Clear equivalents