Cloudy Slate vs RAL 870-2
Cloudy Slate (PPG) and RAL 870-2 (RAL Effect) come from different manufacturers. These are both greys, so the question isn't which hue to choose — it's where within grey to land. Their light reflectance values are nearly the same — 29 vs 30 — so neither will read significantly brighter or darker than the other. A ΔE of 1.5 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cloudy Slate vs RAL 870-2 in Real Spaces
4 real rooms side by side. Cloudy Slate and RAL 870-2 are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. In photos like these you're seeing the difference at its most direct. In a finished room, the distinction is there but not dramatic.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. In photos like these you're seeing the difference at its most direct. In a finished room, the distinction is there but not dramatic.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. In photos like these you're seeing the difference at its most direct. In a finished room, the distinction is there but not dramatic.
Color Details
Cloudy Slate vs RAL 870-2 Simulated Comparison
5 simulated room previews — drag the slider on each to see Cloudy Slate on one side and RAL 870-2 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 Cloudy Slate comparisons
See how Cloudy Slate stacks up against other well-photographed colors across different brands and tones.
At LRV 69 vs 29, Ammonite is decisively the brighter choice.
White Dove reflects far more light (LRV 83 vs 29), opening up a space where Cloudy Slate encloses it.
Cloudy Slate reflects far more light (LRV 29 vs 6), opening up a space where Iron Ore encloses it.
At LRV 52 vs 29, Purbeck Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 30 vs 29), so neither reads brighter in a room.
Mizzle reflects far more light (LRV 52 vs 29), opening up a space where Cloudy Slate encloses it.
At LRV 60 vs 29, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 29), opening up a space where Cloudy Slate encloses it.
With LRVs of 29 and 27, the two reflect almost the same amount of light.
At LRV 43 vs 29, French Gray is decisively the brighter choice.
At LRV 29 vs 4, Cloudy Slate is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 29), opening up a space where Cloudy Slate encloses it.
Cloudy Slate reflects far more light (LRV 29 vs 13), opening up a space where Bancha encloses it.
Hardwick White reflects far more light (LRV 44 vs 29), opening up a space where Cloudy Slate encloses it.
At LRV 84 vs 29, Pure White is decisively the brighter choice.
A 8-point LRV gap (29 vs 21) makes Cloudy Slate the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 29), opening up a space where Cloudy Slate encloses it.
Shoji White reflects far more light (LRV 74 vs 29), opening up a space where Cloudy Slate encloses it.
Snowbound reflects far more light (LRV 83 vs 29), opening up a space where Cloudy Slate encloses it.
At LRV 51 vs 29, Pigeon is decisively the brighter choice.
Cloudy Slate reflects far more light (LRV 29 vs 12), opening up a space where Pewter Green encloses it.
Cloudy Slate reflects far more light (LRV 29 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 29), opening up a space where Cloudy Slate encloses it.
At LRV 41 vs 29, Dix Blue is decisively the brighter choice.
Cloudy Slate reflects far more light (LRV 29 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reflects far more light (LRV 45 vs 29), opening up a space where Cloudy Slate encloses it.
Their light reflectance is nearly identical (LRV 31 vs 29), so neither reads brighter in a room.