ΔE 14.5, fair: the same colour family, but not a straight swap. Sky Blue is more muted, cooler than Cobalt Teal.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Sky Blue is more muted, cooler than Cobalt Teal.
The same difference applies the other way round: Cobalt Teal is more saturated, 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 Cobalt Teal on the colour wheel See Sky Blue on the colour wheel
All matches: Cobalt Teal equivalents · Sky Blue equivalents