Amethyst Showers 3 vs Marble Swirl 4

Amethyst Showers 3 and Marble Swirl 4 are both Dulux blues. The gap between them is ΔE 4.5 — “very close”. Amethyst Showers 3 is the lighter of the two, and Marble Swirl 4 the warmer. Both cost about £14.40 per litre.

	Amethyst Showers 3	Marble Swirl 4
Hex	#BDBBDA	#AEB0C8
Lightness (L*)	77	72
Price / litre	£14.40	£14.40

Looking across brands instead? See Amethyst Showers 3’s cross-brand matches and cheaper alternatives, or Marble Swirl 4’s.