ΔE 69.5, loose: different enough that you should pick on purpose. Fluorescent Magenta is noticeably lighter, much more saturated, warmer than Electric Blue.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 69). Fluorescent Magenta is noticeably lighter, much more saturated, warmer than Electric Blue.
The same difference applies the other way round: Electric Blue is noticeably darker, much more muted, 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 Electric Blue on the colour wheel See Fluorescent Magenta on the colour wheel
All matches: Electric Blue equivalents · Fluorescent Magenta equivalents