Vintage Pink vs Wazdakka Red

How close are they?

ΔE 15.8, loose: different enough that you should pick on purpose. Wazdakka Red is noticeably darker, more saturated than Vintage Pink.

Can I use Wazdakka Red instead of Vintage Pink?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Wazdakka Red is noticeably darker, more saturated than Vintage Pink.

Can I use Vintage Pink instead of Wazdakka Red?

The same difference applies the other way round: Vintage Pink is noticeably lighter, more muted.

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.