Mt. Rainier vs Stone grey
Mt. Rainier (PPG) and Stone grey (RAL Classic) come from different manufacturers. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. Their light reflectance values are nearly the same — 28 vs 29 — so neither will read significantly brighter or darker than the other. A ΔE of 1.7 puts them in subtle territory — distinguishable in direct comparison, less so from across a room. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Mt. Rainier vs Stone grey in Real Spaces
2 real rooms side by side. Mt. Rainier and Stone grey 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.
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.
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Color Details
Mt. Rainier vs Stone grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Mt. Rainier on one side and Stone grey 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 Mt. Rainier comparisons
See how Mt. Rainier stacks up against other well-photographed colors across different brands and tones.
At LRV 69 vs 28, Ammonite is decisively the brighter choice.
White Dove reflects far more light (LRV 83 vs 28), opening up a space where Mt. Rainier encloses it.
Mt. Rainier reflects far more light (LRV 28 vs 6), opening up a space where Iron Ore encloses it.
At LRV 52 vs 28, Purbeck Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 30 vs 28), so neither reads brighter in a room.
Mizzle reflects far more light (LRV 52 vs 28), opening up a space where Mt. Rainier encloses it.
At LRV 60 vs 28, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 28), opening up a space where Mt. Rainier encloses it.
With LRVs of 28 and 27, the two reflect almost the same amount of light.
At LRV 43 vs 28, French Gray is decisively the brighter choice.
At LRV 28 vs 4, Mt. Rainier is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 28), opening up a space where Mt. Rainier encloses it.
Mt. Rainier reflects far more light (LRV 28 vs 13), opening up a space where Bancha encloses it.
Hardwick White reflects far more light (LRV 44 vs 28), opening up a space where Mt. Rainier encloses it.
At LRV 84 vs 28, Pure White is decisively the brighter choice.
A 7-point LRV gap (28 vs 21) makes Mt. Rainier the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 28), opening up a space where Mt. Rainier encloses it.
Shoji White reflects far more light (LRV 74 vs 28), opening up a space where Mt. Rainier encloses it.
Snowbound reflects far more light (LRV 83 vs 28), opening up a space where Mt. Rainier encloses it.
At LRV 51 vs 28, Pigeon is decisively the brighter choice.
Mt. Rainier reflects far more light (LRV 28 vs 12), opening up a space where Pewter Green encloses it.
Mt. Rainier reflects far more light (LRV 28 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 28), opening up a space where Mt. Rainier encloses it.
At LRV 41 vs 28, Dix Blue is decisively the brighter choice.
Mt. Rainier reflects far more light (LRV 28 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reflects far more light (LRV 45 vs 28), opening up a space where Mt. Rainier encloses it.
A 3-point LRV gap (31 vs 28) makes Pale Green the marginally brighter of the two.