ΔE 6.0, very close: most people won’t see a difference side by side. Kakophoni Purple is a little lighter, more muted than Magecast Magenta.
Yes, for most jobs. Very close match (ΔE 6). Kakophoni Purple is a little lighter, more muted than Magecast Magenta.
The same difference applies the other way round: Magecast Magenta is a little darker, 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 Magecast Magenta on the colour wheel See Kakophoni Purple on the colour wheel
All matches: Magecast Magenta equivalents · Kakophoni Purple equivalents