ΔE 12.3, fair: the same colour family, but not a straight swap. Gauss Blaster Green is a little lighter, more muted, warmer than Aquamarine.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Gauss Blaster Green is a little lighter, more muted, warmer than Aquamarine.
The same difference applies the other way round: Aquamarine is a little darker, 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 Aquamarine on the colour wheel See Gauss Blaster Green on the colour wheel
All matches: Aquamarine equivalents · Gauss Blaster Green equivalents