ΔE 21.0, loose: different enough that you should pick on purpose. Light Emerald is noticeably darker, much more muted, cooler than Talisman Teal.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Light Emerald is noticeably darker, much more muted, cooler than Talisman Teal.
The same difference applies the other way round: Talisman Teal is noticeably lighter, much 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 Talisman Teal on the colour wheel See Light Emerald on the colour wheel
All matches: Talisman Teal equivalents · Light Emerald equivalents