ΔE 26.2, loose: different enough that you should pick on purpose. Faded Green is much more muted, warmer than Aqua Alchemy.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 26). Faded Green is much more muted, warmer than Aqua Alchemy.
The same difference applies the other way round: Aqua Alchemy is much more saturated, 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 Aqua Alchemy on the colour wheel See Faded Green on the colour wheel
All matches: Aqua Alchemy equivalents · Faded Green equivalents