Grey Steel 4 vs Rock Salt
Grey Steel 4 and Rock Salt are both Dulux neutrals. The gap between them is ΔE 1.1 — “near-identical”. Rock Salt is the lighter of the two, and Grey Steel 4 the warmer. Both cost about £10.20 per litre.
| Grey Steel 4 | Rock Salt | |
|---|---|---|
| Hex | #E8E8E5 | #E9EAE9 |
| Lightness (L*) | 92 | 93 |
| Price / litre | £10.20 | £10.20 |
More Dulux comparisons
Looking across brands instead? See Grey Steel 4’s cross-brand matches and cheaper alternatives, or Rock Salt’s.