Blue vs Sapphire Springs 4

Blue and Sapphire Springs 4 are both Dulux blues. The gap between them is ΔE 2.9 — “near-identical”. Blue is the lighter of the two, and Sapphire Springs 4 the warmer.

	Blue	Sapphire Springs 4
Hex	#4376A3	#4D73A1
Lightness (L*)	48	48
Price / litre	—	£14.40

Looking across brands instead? See Blue’s cross-brand matches and cheaper alternatives, or Sapphire Springs 4’s.