Liberty Blue 4 vs Open Sky
Liberty Blue 4 and Open Sky are both Dulux blues. The gap between them is ΔE 2.5 — “near-identical”. Open Sky is the lighter of the two. Both cost about £10.20 per litre.
| Liberty Blue 4 | Open Sky | |
|---|---|---|
| Hex | #B0CED9 | #B0D3DB |
| Lightness (L*) | 81 | 82 |
| Price / litre | £10.20 | £10.20 |
More Dulux comparisons
Looking across brands instead? See Liberty Blue 4’s cross-brand matches and cheaper alternatives, or Open Sky’s.