ΔE 10.1, fair: the same colour family, but not a straight swap. Heretic Turquoise is more saturated than Graphite Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Heretic Turquoise is more saturated than Graphite Green.
The same difference applies the other way round: Graphite Green is 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 Graphite Green on the colour wheel See Heretic Turquoise on the colour wheel
All matches: Graphite Green equivalents · Heretic Turquoise equivalents