How does Green Grotto (No.SAP0062) by Sanderson compare with Johnstone's’s closest paints? The nearest match by perceptual distance is Johnstone's Dried Rosemary (ΔE 2.5, “near-identical”). 1 more Johnstone's colour sit within ΔE 4 — close enough that the difference is hard to spot once paint’s on the wall. These 2 Johnstone's paints are all priced at £12.36 per litre, against Sanderson Green Grotto at £19.60/L.
Sanderson Green Grotto vs Johnstone's
2 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 |
|---|---|---|---|---|---|
| Dried Rosemary | — | 2.5 | near-identical | £12.36 | £2.06 |
| Quaking Grass | — | 2.8 | near-identical | £12.36 | £2.06 |