ΔE 22.1, loose: different enough that you should pick on purpose. Grey Seer is a little darker, much more muted than Figgy Pink.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 22). Grey Seer is a little darker, much more muted than Figgy Pink.
The same difference applies the other way round: Figgy Pink is a little lighter, 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 Figgy Pink on the colour wheel See Grey Seer on the colour wheel
All matches: Figgy Pink equivalents · Grey Seer equivalents