Mt. Rainier vs Agreeable Gray
Mt. Rainier (PPG) and Agreeable Gray (Sherwin-Williams) come from different manufacturers. Mt. Rainier reads as grey, while Agreeable Gray reads as greige-grey — two distinct hue families, not close cousins. The 32-point LRV gap — 60 for Agreeable Gray vs 28 for Mt. Rainier — means Agreeable Gray will open up a space more effectively. A ΔE of 21.7 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 9 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Mt. Rainier vs Agreeable Gray in Real Spaces
9 real rooms side by side. Seeing Mt. Rainier and Agreeable Gray in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Mt. Rainier.
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. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Kitchen
Kitchens often have the harshest, most revealing light in the house — under-cabinet LEDs and overhead fixtures that strip away subtlety. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Dining Room
Dining rooms often rely on warm incandescent or candlelight, which flatters warm undertones and mutes cool ones. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Mt. Rainier would.
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. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Home Office
Home office walls matter more than most — you're looking at them all day, and a color that reads fine at first can become tiring over time. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Mudroom
In a hardworking space like a mudroom, the depth and warmth of a color reads differently than in a quieter room. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Mt. Rainier would.
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. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
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. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Mt. Rainier.
Color Details
Mt. Rainier vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Mt. Rainier on one side and Agreeable Gray 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.
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.
At LRV 28 vs 7, Mt. Rainier is decisively the brighter choice.