ΔE 23.7, loose: different enough that you should pick on purpose. Pink is noticeably lighter, much more muted than Volupus Pink. They are different kinds of paint: Citadel Volupus Pink is a one-coat contrast-style paint and Tamiya Pink is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Pink is noticeably lighter, much more muted than Volupus Pink. They are different kinds of paint.
The same difference applies the other way round: Volupus Pink is noticeably 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 Volupus Pink on the colour wheel See Pink on the colour wheel
All matches: Volupus Pink equivalents · Pink equivalents