ΔE 13.7, fair: the same colour family, but not a straight swap. Hydra Turquoise is a little darker, warmer than Ice Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Hydra Turquoise is a little darker, warmer than Ice Blue.
The same difference applies the other way round: Ice Blue is a little lighter, 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 Ice Blue on the colour wheel See Hydra Turquoise on the colour wheel
All matches: Ice Blue equivalents · Hydra Turquoise equivalents