Blue Opal vs Celestial Cloud 5
Blue Opal and Celestial Cloud 5 are both Dulux blues. The gap between them is ΔE 1.9 — “near-identical”. Blue Opal is the lighter of the two, and Celestial Cloud 5 the warmer. Both cost about £10.20 per litre.
| Blue Opal | Celestial Cloud 5 | |
|---|---|---|
| Hex | #CEDFE5 | #CCD9DD |
| Lightness (L*) | 88 | 86 |
| Price / litre | £10.20 | £10.20 |
More Dulux comparisons
Looking across brands instead? See Blue Opal’s cross-brand matches and cheaper alternatives, or Celestial Cloud 5’s.