How does Portland Stone - Dark (No.3) by Little Greene compare with Johnstone's’s closest paints? The nearest match by perceptual distance is Johnstone's Green Grey Mist (ΔE 1.6, “near-identical”). 5 more Johnstone's colours sit within ΔE 4 — close enough that the difference is hard to spot once paint’s on the wall. These 6 Johnstone's paints are all priced at £12.36 per litre, against Little Greene Portland Stone - Dark at £28.00/L.
Little Greene Portland Stone - Dark vs Johnstone's
6 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 |
|---|---|---|---|---|---|
| Green Grey Mist | — | 1.6 | near-identical | £12.36 | £2.06 |
| Woolen Vest | — | 1.8 | near-identical | £12.36 | £2.06 |
| Foggy Beach | — | 1.8 | near-identical | £12.36 | £2.06 |
| Winter Vineyard | — | 2.4 | near-identical | £12.36 | £2.06 |
| Lost Valley | — | 2.8 | near-identical | £12.36 | £2.06 |
| Man’s Best Friend | — | 2.9 | near-identical | £12.36 | £2.06 |