ΔE 14.5, fair: the same colour family, but not a straight swap. Dk Mediterr. Blue is a little lighter, more saturated than Tenebrous Teal.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Dk Mediterr. Blue is a little lighter, more saturated than Tenebrous Teal.
The same difference applies the other way round: Tenebrous Teal 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 Tenebrous Teal on the colour wheel See Dk Mediterr. Blue on the colour wheel
All matches: Tenebrous Teal equivalents · Dk Mediterr. Blue equivalents