How does Oval Room Blue by Farrow & Ball compare with Johnstone's’s closest paints? The nearest match by perceptual distance is Johnstone's Aqua Smoke (ΔE 1.4, “near-identical”). 6 more Johnstone's colours sit within ΔE 4 — close enough that the difference is hard to spot once paint’s on the wall. Prices for these 7 Johnstone's paints range from £6.14 to £12.36 per litre, against Farrow & Ball Oval Room Blue at £25.60/L.
Farrow & Ball Oval Room Blue vs Johnstone's
7 closest Johnstone's matches ranked by ΔE
ΔE (CIEDE2000) is a perceptual distance metric — lower means a closer match. Matches under ΔE 2 are typically indistinguishable; ΔE 2–4 looks “the same” once dry on a wall; ΔE 4–6 is noticeable side-by-side. Always view a sample pot before committing — screen colours and lighting vary.
| Colour | Number | ΔE | Match quality | Price/L | Price/m2 |
|---|---|---|---|---|---|
| Aqua Smoke | — | 1.4 | near-identical | £12.36 | £2.06 |
| After The Storm | — | 2.6 | near-identical | £12.36 | £2.06 |
| Spruce Shade | — | 3.0 | near-identical | £12.36 | £2.06 |
| Symphony Of Blue | — | 3.1 | very close | £12.36 | £2.06 |
| Symmetry | — | 3.7 | very close | £12.36 | £2.06 |
| Aqua Leaf | — | 3.7 | very close | £6.14 | £1.02 |
| Botanical Retreat | — | 3.7 | very close | £6.14 | £1.02 |