Portland Stone - Dark vs RAL 140-M
Portland Stone - Dark (Little Greene) and RAL 140-M (RAL Effect) come from different manufacturers. Both sit in the beige-greige family, which is useful context if you're narrowing within a single hue direction. Their light reflectance values are nearly the same — 33 vs 35 — so neither will read significantly brighter or darker than the other. ΔE 5.3 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Portland Stone - Dark vs RAL 140-M Simulated Comparison
5 simulated room previews — drag the slider on each to see Portland Stone - Dark on one side and RAL 140-M on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Portland Stone - Dark comparisons
See how Portland Stone - Dark stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 33), opening up a space where Portland Stone - Dark encloses it.
At LRV 83 vs 33, White Dove is decisively the brighter choice.
At LRV 33 vs 6, Portland Stone - Dark is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 33), opening up a space where Portland Stone - Dark encloses it.
With LRVs of 33 and 30, the two reflect almost the same amount of light.
At LRV 52 vs 33, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 33), opening up a space where Portland Stone - Dark encloses it.
At LRV 58 vs 33, Accessible Beige is decisively the brighter choice.
A 6-point LRV gap (33 vs 27) makes Portland Stone - Dark the marginally brighter of the two.
French Gray reads slightly lighter (LRV 43 vs 33), a gap that shows most in low-lit rooms.
Portland Stone - Dark reflects far more light (LRV 33 vs 4), opening up a space where Naval encloses it.
At LRV 55 vs 33, Tranquil Dawn is decisively the brighter choice.
At LRV 33 vs 13, Portland Stone - Dark is decisively the brighter choice.
A 11-point LRV gap (44 vs 33) makes Hardwick White the marginally brighter of the two.
Pure White reflects far more light (LRV 84 vs 33), opening up a space where Portland Stone - Dark encloses it.
Portland Stone - Dark reads slightly lighter (LRV 33 vs 21), a gap that shows most in low-lit rooms.
At LRV 66 vs 33, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 33, Shoji White is decisively the brighter choice.
At LRV 83 vs 33, Snowbound is decisively the brighter choice.
Pigeon reflects far more light (LRV 51 vs 33), opening up a space where Portland Stone - Dark encloses it.
At LRV 33 vs 12, Portland Stone - Dark is decisively the brighter choice.
At LRV 33 vs 8, Portland Stone - Dark is decisively the brighter choice.
At LRV 68 vs 33, Skimming Stone is decisively the brighter choice.
Dix Blue reads slightly lighter (LRV 41 vs 33), a gap that shows most in low-lit rooms.
At LRV 33 vs 12, Portland Stone - Dark is decisively the brighter choice.
At LRV 45 vs 33, Saybrook Sage is decisively the brighter choice.
With LRVs of 33 and 31, the two reflect almost the same amount of light.