ΔE 13.5, fair: the same colour family, but not a straight swap. UK Azure Blue is a little darker, much more saturated, cooler than Lendanis Grey.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). UK Azure Blue is a little darker, much more saturated, cooler than Lendanis Grey.
The same difference applies the other way round: Lendanis Grey is a little lighter, much more muted, warmer.
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 Lendanis Grey on the colour wheel See UK Azure Blue on the colour wheel
All matches: Lendanis Grey equivalents · UK Azure Blue equivalents