ΔE 12.7, fair: the same colour family, but not a straight swap. Field Blue is a little darker, more muted than Smoked Blue.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Field Blue is a little darker, more muted than Smoked Blue.
The same difference applies the other way round: Smoked Blue is a little lighter, more saturated.
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 Smoked Blue on the colour wheel See Field Blue on the colour wheel
All matches: Smoked Blue equivalents · Field Blue equivalents