ΔE 14.2, fair: the same colour family, but not a straight swap. Lavender Grey is a little darker, much more muted than Faded Purple.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Lavender Grey is a little darker, much more muted than Faded Purple.
The same difference applies the other way round: Faded Purple is a little lighter, much 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 Faded Purple on the colour wheel See Lavender Grey on the colour wheel
All matches: Faded Purple equivalents · Lavender Grey equivalents