ΔE 23.4, loose: different enough that you should pick on purpose. Fluorescent Green is noticeably darker, more muted than Fluorescent Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 23). Fluorescent Green is noticeably darker, more muted than Fluorescent Green.
The same difference applies the other way round: Fluorescent 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 Fluorescent Green on the colour wheel See Fluorescent Green on the colour wheel
All matches: Fluorescent Green equivalents · Fluorescent Green equivalents