Alga Green vs Elysian Green

How close are they?

ΔE 10.3, fair: the same colour family, but not a straight swap. Elysian Green is a little darker, more saturated than Alga Green.

Can I use Elysian Green instead of Alga Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Elysian Green is a little darker, more saturated than Alga Green.

Can I use Alga Green instead of Elysian Green?

The same difference applies the other way round: Alga Green is a little lighter, more muted.

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.