ΔE 17.2, loose: different enough that you should pick on purpose. Beetle Green is much more saturated, cooler than Golden Moon.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Beetle Green is much more saturated, cooler than Golden Moon.
The same difference applies the other way round: Golden Moon is much more muted, 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 Golden Moon on the colour wheel See Beetle Green on the colour wheel
All matches: Golden Moon equivalents · Beetle Green equivalents