ΔE 5.4, very close: most people won’t see a difference side by side. Dark Blue Grey is a little lighter, more muted than Huldra Blue.
Yes, for most jobs. Very close match (ΔE 5). Dark Blue Grey is a little lighter, more muted than Huldra Blue.
The same difference applies the other way round: Huldra Blue is a little darker, 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 Huldra Blue on the colour wheel See Dark Blue Grey on the colour wheel
All matches: Huldra Blue equivalents · Dark Blue Grey equivalents