ΔE 4.9, very close: most people won’t see a difference side by side. Faded P.R.U. Blue is a little darker, cooler than Medium Seagray BS381C 637.
Yes, for most jobs. Very close match (ΔE 5). Faded P.R.U. Blue is a little darker, cooler than Medium Seagray BS381C 637.
The same difference applies the other way round: Medium Seagray BS381C 637 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 Medium Seagray BS381C 637 on the colour wheel See Faded P.R.U. Blue on the colour wheel
All matches: Medium Seagray BS381C 637 equivalents · Faded P.R.U. Blue equivalents