ΔE 18.0, loose: different enough that you should pick on purpose. Blue Glacier is a little lighter, much more saturated, cooler than Pylar Glacier.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Blue Glacier is a little lighter, much more saturated, cooler than Pylar Glacier.
The same difference applies the other way round: Pylar Glacier is a little darker, 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 Pylar Glacier on the colour wheel See Blue Glacier on the colour wheel
All matches: Pylar Glacier equivalents · Blue Glacier equivalents