Azure Sky 2 vs Celestial Blue 5
Azure Sky 2 and Celestial Blue 5 are both Dulux blues. The gap between them is ΔE 4.6 — “very close”. Azure Sky 2 is the lighter of the two, and Celestial Blue 5 the warmer. Both cost about £10.20 per litre.
| Azure Sky 2 | Celestial Blue 5 | |
|---|---|---|
| Hex | #10A1CF | #4F98B9 |
| Lightness (L*) | 62 | 60 |
| Price / litre | £10.20 | £10.20 |
More Dulux comparisons
Looking across brands instead? See Azure Sky 2’s cross-brand matches and cheaper alternatives, or Celestial Blue 5’s.