ΔE 13.3, fair: the same colour family, but not a straight swap. Caspian Blue is a little darker, cooler than Bramble Grove.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Caspian Blue is a little darker, cooler than Bramble Grove.
The same difference applies the other way round: Bramble Grove is a little lighter, 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 Bramble Grove on the colour wheel See Caspian Blue on the colour wheel
All matches: Bramble Grove equivalents · Caspian Blue equivalents