ΔE 11.0, fair: the same colour family, but not a straight swap. Coelia Greenshade is a little lighter, warmer than Turquoise INK. They are different kinds of paint: AK Interactive Turquoise INK is an ink, glaze or transparent paint and Citadel Coelia Greenshade is a wash/shade, so they won’t behave the same on the model even where the colour is close.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Coelia Greenshade is a little lighter, warmer than Turquoise INK. They are different kinds of paint.
The same difference applies the other way round: Turquoise INK is a little darker, cooler.
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 Turquoise INK on the colour wheel See Coelia Greenshade on the colour wheel
All matches: Turquoise INK equivalents · Coelia Greenshade equivalents