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 £14.40 per litre.

	Azure Sky 2	Celestial Blue 5
Hex	#10A1CF	#4F98B9
Lightness (L*)	62	60
Price / litre	£14.40	£14.40

Looking across brands instead? See Azure Sky 2’s cross-brand matches and cheaper alternatives, or Celestial Blue 5’s.