ΔE 13.0, fair: the same colour family, but not a straight swap. Beetle Green is a little darker, more saturated, warmer than Astral Beryllium.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Beetle Green is a little darker, more saturated, warmer than Astral Beryllium.
The same difference applies the other way round: Astral Beryllium is a little lighter, 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 Astral Beryllium on the colour wheel See Beetle Green on the colour wheel
All matches: Astral Beryllium equivalents · Beetle Green equivalents