ΔE 20.6, loose: different enough that you should pick on purpose. Gauss Blaster Green is noticeably lighter, much more muted than Talisman Teal.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Gauss Blaster Green is noticeably lighter, much more muted than Talisman Teal.
The same difference applies the other way round: Talisman Teal is noticeably darker, much more saturated.
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 Gauss Blaster Green on the colour wheel
All matches: Talisman Teal equivalents · Gauss Blaster Green equivalents