Royal Hyacinth by Johnstone's is a deep muted blue. Hex: #37445F. RGB: 55, 68, 95. Price: approximately £12.36 per litre. The nearest equivalent from another manufacturer is Dulux Heritage DH Oxford Blue (Heritage) (ΔE 2.7, “near-identical”), priced at approximately £10.40 per litre. Other close matches include Farrow & Ball Serge (ΔE 2.8) and Coat Blue Blood (ΔE 3.4).
Royal Hyacinth by Johnstone's
- Hex
#37445F- RGB
- 55, 68, 95
- Manufacturer
- Johnstone's
- Price per litre
- £12.36
- Price per m2 (?)
- £2.06
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Nearest matches from other manufacturers
| Colour | Manufacturer | ΔE | Match quality | Price/L | Price/m2 (?) |
|---|---|---|---|---|---|
| DH Oxford Blue (Heritage) (No.LRV 6) | Dulux Heritage | 2.7 | Near-identical | £10.40 (£1.96 less) | £1.30 |
| Serge | Farrow & Ball | 2.8 | Near-identical | £25.60 (£13.24 more) | £3.94 |
| Blue Blood | Coat | 3.4 | Very close | £22.40 (£10.04 more) | £4.48 |
| Blue Maize | Farrow & Ball | 3.5 | Very close | £25.60 (£13.24 more) | £3.94 |
| Blueprint (No.No.50) | Mylands | 3.5 | Very close | £27.20 (£14.84 more) | £3.63 |
| Marine Waters | Dulux | 3.7 | Very close | £10.20 (£2.16 less) | £1.57 |
| Sapphire Salute | Dulux | 3.7 | Very close | £10.20 (£2.16 less) | £1.57 |
| Sapphire Springs 1 | Dulux | 3.7 | Very close | £10.20 (£2.16 less) | £1.57 |
| Duchess blue (No.20 C 40) | BS 4800 | 4.0 | Very close | — | — |
DH Oxford Blue (Heritage)
Dulux Heritage
Near-identical
ΔE 2.7
£10.40/L
£1.30/m2
Serge
Farrow & Ball
Near-identical
ΔE 2.8
£25.60/L
£3.94/m2
Blue Blood
Coat
Very close
ΔE 3.4
£22.40/L
£4.48/m2
Blue Maize
Farrow & Ball
Very close
ΔE 3.5
£25.60/L
£3.94/m2
Blueprint
Mylands
Very close
ΔE 3.5
£27.20/L
£3.63/m2
Marine Waters
Dulux
Very close
ΔE 3.7
£10.20/L
£1.57/m2
Sapphire Salute
Dulux
Very close
ΔE 3.7
£10.20/L
£1.57/m2
Sapphire Springs 1
Dulux
Very close
ΔE 3.7
£10.20/L
£1.57/m2
Duchess blue
BS 4800
Very close
ΔE 4.0
Colour neighbourhood
Coverage & application
Manufacturer figures from the Johnstone's Product Advice Sheet. Real-world coverage is typically 15-20% lower.
| Finish | Coverage | Coats | Sheen | Scrub class | Touch dry | Recoat | VOC |
|---|---|---|---|---|---|---|---|
| MY colour Durable Matt PAS | 12 m²/L | 2 | 4% | — | 1h | 3h | — |
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