Gray Marble vs Agreeable Gray
Gray Marble (PPG) and Agreeable Gray (Sherwin-Williams) come from different manufacturers. Hue-wise, Gray Marble belongs to the grey family and Agreeable Gray to the greige-grey family. The 14-point LRV gap — 60 for Agreeable Gray vs 46 for Gray Marble — means Agreeable Gray will open up a space more effectively. ΔE 9.1 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 9 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Gray Marble vs Agreeable Gray in Real Spaces
9 real rooms side by side. Gray Marble and Agreeable Gray 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. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Gray Marble.
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 Gray Marble 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 Gray Marble 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 Gray Marble.
Color Details
Gray Marble vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Gray Marble 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 Gray Marble comparisons
See how Gray Marble stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 46), opening up a space where Gray Marble encloses it.
At LRV 83 vs 46, White Dove is decisively the brighter choice.
At LRV 46 vs 6, Gray Marble is decisively the brighter choice.
Purbeck Stone reads slightly lighter (LRV 52 vs 46), a gap that shows most in low-lit rooms.
Gray Marble reflects far more light (LRV 46 vs 30), opening up a space where Evergreen Fog encloses it.
A 6-point LRV gap (52 vs 46) makes Mizzle the marginally brighter of the two.
A 12-point LRV gap (58 vs 46) makes Accessible Beige the marginally brighter of the two.
At LRV 46 vs 27, Gray Marble is decisively the brighter choice.
With LRVs of 46 and 43, the two reflect almost the same amount of light.
Gray Marble reflects far more light (LRV 46 vs 4), opening up a space where Naval encloses it.
A 9-point LRV gap (55 vs 46) makes Tranquil Dawn the marginally brighter of the two.
At LRV 46 vs 13, Gray Marble is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 46 vs 44), so neither reads brighter in a room.
Pure White reflects far more light (LRV 84 vs 46), opening up a space where Gray Marble encloses it.
Gray Marble reflects far more light (LRV 46 vs 21), opening up a space where Artichoke encloses it.
At LRV 66 vs 46, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 46, Shoji White is decisively the brighter choice.
At LRV 83 vs 46, Snowbound is decisively the brighter choice.
Pigeon reads slightly lighter (LRV 51 vs 46), a gap that shows most in low-lit rooms.
At LRV 46 vs 12, Gray Marble is decisively the brighter choice.
At LRV 46 vs 8, Gray Marble is decisively the brighter choice.
At LRV 68 vs 46, Skimming Stone is decisively the brighter choice.
Gray Marble reads slightly lighter (LRV 46 vs 41), a gap that shows most in low-lit rooms.
At LRV 46 vs 12, Gray Marble is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 46 vs 45), so neither reads brighter in a room.
Gray Marble reflects far more light (LRV 46 vs 31), opening up a space where Pale Green encloses it.
Gray Marble reflects far more light (LRV 46 vs 7), opening up a space where Pine Needle encloses it.