Imperial Purple by Johnstone's is a deep muted blue. Hex: #42446E. RGB: 66, 68, 110. Price: approximately £12.36 per litre. The nearest equivalent from another manufacturer is Zoffany Lazuli (ΔE 2.6, “near-identical”), priced at approximately £22.00 per litre. Other close matches include Farrow & Ball Blue Maize (ΔE 3.4) and Farrow & Ball Drawing Room Blue (ΔE 5.4).
Imperial Purple by Johnstone's
- Hex
#42446E- RGB
- 66, 68, 110
- 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 (?) |
|---|---|---|---|---|---|
| Lazuli (No.ZOP0073) | Zoffany | 2.6 | Near-identical | £22.00 (£9.64 more) | — |
| Blue Maize | Farrow & Ball | 3.4 | Very close | £25.60 (£13.24 more) | £3.94 |
| Drawing Room Blue | Farrow & Ball | 5.4 | Similar | £25.60 (£13.24 more) | £3.94 |
| Serge | Farrow & Ball | 5.5 | Similar | £25.60 (£13.24 more) | £3.94 |
| Trumpet | Earthborn | 5.8 | Similar | £24.00 (£11.64 more) | £4.80 |
| Deep purple (No.22 D 45) | BS 4800 | 7.0 | Similar | — | — |
| Imperial Purple | Farrow & Ball | 7.0 | Similar | £25.60 (£13.24 more) | £3.94 |
| Violet blue (No.5000) | RAL Classic | 7.1 | Similar | — | — |
| Smalt | Craig & Rose | 7.1 | Similar | £18.00 (£5.64 more) | £2.57 |
Lazuli
Zoffany
Near-identical
ΔE 2.6
£22.00/L
Blue Maize
Farrow & Ball
Very close
ΔE 3.4
£25.60/L
£3.94/m2
Drawing Room Blue
Farrow & Ball
Similar
ΔE 5.4
£25.60/L
£3.94/m2
Serge
Farrow & Ball
Similar
ΔE 5.5
£25.60/L
£3.94/m2
Trumpet
Earthborn
Similar
ΔE 5.8
£24.00/L
£4.80/m2
Deep purple
BS 4800
Similar
ΔE 7.0
Imperial Purple
Farrow & Ball
Similar
ΔE 7.0
£25.60/L
£3.94/m2
Violet blue
RAL Classic
Similar
ΔE 7.1
Smalt
Craig & Rose
Similar
ΔE 7.1
£18.00/L
£2.57/m2
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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