ΔE 14.2, fair: the same colour family, but not a straight swap. Spellbound Fuchsia is a little lighter, much more muted than Light Magenta.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Spellbound Fuchsia is a little lighter, much more muted than Light Magenta.
The same difference applies the other way round: Light Magenta is a little darker, much 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 Magenta on the colour wheel See Spellbound Fuchsia on the colour wheel
All matches: Light Magenta equivalents · Spellbound Fuchsia equivalents