ΔE 26.4, loose: different enough that you should pick on purpose. Beetle Green is noticeably darker, more saturated, cooler than Platinum Crown.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 26). Beetle Green is noticeably darker, more saturated, cooler than Platinum Crown.
The same difference applies the other way round: Platinum Crown is noticeably lighter, 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 Platinum Crown on the colour wheel See Beetle Green on the colour wheel
All matches: Platinum Crown equivalents · Beetle Green equivalents