ΔE 10.8, fair: the same colour family, but not a straight swap. Pastel Blue is more muted, warmer than Sentient Turquoise.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Pastel Blue is more muted, warmer than Sentient Turquoise.
The same difference applies the other way round: Sentient Turquoise 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 Sentient Turquoise on the colour wheel See Pastel Blue on the colour wheel
All matches: Sentient Turquoise equivalents · Pastel Blue equivalents