ΔE 24.2, loose: different enough that you should pick on purpose. Light Blue Green is noticeably lighter, more saturated, warmer than Cobalt Turquois.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Light Blue Green is noticeably lighter, more saturated, warmer than Cobalt Turquois.
The same difference applies the other way round: Cobalt Turquois is noticeably darker, more muted, 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 Cobalt Turquois on the colour wheel See Light Blue Green on the colour wheel
All matches: Cobalt Turquois equivalents · Light Blue Green equivalents