ΔE 5.6, very close: most people won’t see a difference side by side. Princess Pink is a little darker than Gum Pink. They are different kinds of paint: AMMO by Mig Gum Pink is an opaque base/layer paint and Army Painter Princess Pink is a one-coat contrast-style paint, so they won’t behave the same on the model even where the colour is close.
Yes, for most jobs. Very close match (ΔE 6). Princess Pink is a little darker than Gum Pink. They are different kinds of paint.
The same difference applies the other way round: Gum Pink is a little lighter.
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 Gum Pink on the colour wheel See Princess Pink on the colour wheel
All matches: Gum Pink equivalents · Princess Pink equivalents