Ogryn Camo vs Ethereal Green

How close are they?

ΔE 16.7, loose: different enough that you should pick on purpose. Ethereal Green is noticeably darker, more saturated, cooler than Ogryn Camo.

Can I use Ethereal Green instead of Ogryn Camo?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Ethereal Green is noticeably darker, more saturated, cooler than Ogryn Camo.

Can I use Ogryn Camo instead of Ethereal Green?

The same difference applies the other way round: Ogryn Camo 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.