Sapphire Sky by Johnstone's is a mid-tone cyan. Hex: #357ABA. RGB: 53, 122, 186. Price: approximately £13.37 per litre. The nearest equivalent from another manufacturer is BS 4800 Blue (ΔE 2.2, “near-identical”). Other close alternatives include Farrow & Ball Pea Flower Tea (ΔE 2.4) and Dulux Blue Seduction 1 (ΔE 2.4).

Sapphire Sky by Johnstone's

Hex: #357ABA
RGB: 53, 122, 186
Manufacturer: Johnstone's
Price per litre: £13.37
Price per m² (?): £2.23

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Nearest matches & alternatives from other brands

Colour	Manufacturer	ΔE	Match quality	Price/L	Price/m² (?)
Blue (No.20 E 53)	BS 4800	2.2	Near-identical	—	—
Pea Flower Tea	Farrow & Ball	2.4	Near-identical	£26.40 (£13.03 more)	£4.06
Blue Seduction 1	Dulux	2.4	Near-identical	£14.40 (£1.03 more)	£2.22
Royal Regatta 3	Dulux	3.2	Very close	£14.40 (£1.03 more)	£2.22
Light blue (No.5012)	RAL Classic	3.4	Very close	—	—
Sky blue (No.5015)	RAL Classic	3.6	Very close	—	—
Blue 19 (No.blue-19)	Lick	4.0	Very close	£16.40 (£3.03 more)	£3.28
Free Dive	Dulux	4.5	Very close	£14.40 (£1.03 more)	£2.22
Sapphire Springs 4	Dulux	5.0	Similar	£14.40 (£1.03 more)	£2.22