ΔE 25.3, loose: different enough that you should pick on purpose. Warlord Purple is noticeably darker, much more saturated, cooler than Perisher Pink.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Warlord Purple is noticeably darker, much more saturated, cooler than Perisher Pink.
The same difference applies the other way round: Perisher Pink is noticeably lighter, much more muted, warmer.
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 Perisher Pink on the colour wheel See Warlord Purple on the colour wheel
All matches: Perisher Pink equivalents · Warlord Purple equivalents