ΔE 28.8, loose: different enough that you should pick on purpose. Grey Spell is more muted, warmer than Lizardfolk Cyan.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 29). Grey Spell is more muted, warmer than Lizardfolk Cyan.
The same difference applies the other way round: Lizardfolk Cyan is more saturated, cooler.
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 Lizardfolk Cyan on the colour wheel See Grey Spell on the colour wheel
All matches: Lizardfolk Cyan equivalents · Grey Spell equivalents