ΔE 12.8, fair: the same colour family, but not a straight swap. Blue is a little darker, more saturated, warmer than Teclis Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Blue is a little darker, more saturated, warmer than Teclis Blue.
The same difference applies the other way round: Teclis Blue is a little lighter, more muted, 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 Teclis Blue on the colour wheel See Blue on the colour wheel
All matches: Teclis Blue equivalents · Blue equivalents