ΔE 14.8, fair: the same colour family, but not a straight swap. Pylar Glacier is noticeably darker, more muted than Pastel Indigo.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Pylar Glacier is noticeably darker, more muted than Pastel Indigo.
The same difference applies the other way round: Pastel Indigo is noticeably lighter, 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 Pastel Indigo on the colour wheel See Pylar Glacier on the colour wheel
All matches: Pastel Indigo equivalents · Pylar Glacier equivalents