Blue Diamond 6 vs Crystal Surprise 4

Blue Diamond 6 and Crystal Surprise 4 are both Dulux teals. The gap between them is ΔE 4.1 — “very close”. Crystal Surprise 4 is the lighter of the two. Both cost about £14.40 per litre.

	Blue Diamond 6	Crystal Surprise 4
Hex	#89CED2	#95D9D5
Lightness (L*)	79	82
Price / litre	£14.40	£14.40

Looking across brands instead? See Blue Diamond 6’s cross-brand matches and cheaper alternatives, or Crystal Surprise 4’s.