ΔE 11.2, fair: the same colour family, but not a straight swap. Elysian Green is a little lighter, more saturated than Camo Cloak. They are different kinds of paint: Army Painter Camo Cloak is a one-coat contrast-style paint and Citadel Elysian Green is an opaque base/layer paint, so they won’t behave the same on the model even where the colour is close.
✓ Herrick Games paint comparison chart lists these two as equivalents.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Elysian Green is a little lighter, more saturated than Camo Cloak. They are different kinds of paint.
The same difference applies the other way round: Camo Cloak is a little darker, 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.
See Camo Cloak on the colour wheel See Elysian Green on the colour wheel
All matches: Camo Cloak equivalents · Elysian Green equivalents