Flagstone vs Agreeable Gray
Flagstone is a PPG color while Agreeable Gray comes from Sherwin-Williams. Flagstone reads as grey, while Agreeable Gray reads as greige-grey — two distinct hue families, not close cousins. At LRV 60 vs 41, Agreeable Gray will read as the brighter of the two — a 19-point gap that matters most in north-facing or low-light rooms. At ΔE 12.7, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 9 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Flagstone vs Agreeable Gray in Real Spaces
9 real rooms side by side. Seeing Flagstone 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
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Flagstone would.
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Flagstone would.
Dining Room
Dining room light is typically the warmest in the house, which shifts both colors toward the red end of the spectrum compared to daylight. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Flagstone.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Flagstone would.
Home Office
In a home office, wall color sits in your peripheral vision for hours at a time, so temperature and undertone matter more than you might expect. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Flagstone would.
Mudroom
A mudroom color needs to hold up under the most casual scrutiny: a glance as you're coming and going, often in mixed or artificial light. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Flagstone.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Flagstone would.
Front Door
Front doors are seen in isolation against the rest of the facade, which makes them a high-stakes surface where even subtle differences matter. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Flagstone vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Flagstone 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 Flagstone comparisons
See how Flagstone stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 41, White Dove is decisively the brighter choice.
Purbeck Stone reads slightly lighter (LRV 52 vs 41), a gap that shows most in low-lit rooms.
Flagstone reads slightly lighter (LRV 41 vs 30), a gap that shows most in low-lit rooms.
At LRV 58 vs 41, Accessible Beige is decisively the brighter choice.
At LRV 41 vs 27, Flagstone is decisively the brighter choice.
With LRVs of 43 and 41, the two reflect almost the same amount of light.
At LRV 55 vs 41, Tranquil Dawn is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 44 vs 41), so neither reads brighter in a room.
Pure White reflects far more light (LRV 84 vs 41), opening up a space where Flagstone encloses it.
At LRV 66 vs 41, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 41, Shoji White is decisively the brighter choice.
At LRV 41 vs 12, Flagstone is decisively the brighter choice.
At LRV 68 vs 41, Skimming Stone is decisively the brighter choice.
At LRV 41 vs 12, Flagstone is decisively the brighter choice.
A 4-point LRV gap (45 vs 41) makes Saybrook Sage the marginally brighter of the two.
Flagstone reads slightly lighter (LRV 41 vs 31), a gap that shows most in low-lit rooms.
Flagstone reflects far more light (LRV 41 vs 7), opening up a space where Pine Needle encloses it.
Flagstone reflects far more light (LRV 41 vs 24), opening up a space where Cement grey encloses it.
Guilford Green reflects far more light (LRV 57 vs 41), opening up a space where Flagstone encloses it.
Just Walnut reflects far more light (LRV 72 vs 41), opening up a space where Flagstone encloses it.