ΔE 5.7, very close: most people won’t see a difference side by side. Our swatches for the two are almost the same.
✓ Two Thin Coats comparison chart lists these two as equivalents.
Yes, for most jobs. Very close match (ΔE 6). The swatches are almost the same.
The same difference applies the other way round.
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 Grey Knights Steel on the colour wheel See Blue Steel on the colour wheel
All matches: Grey Knights Steel equivalents · Blue Steel equivalents