Mercurial vs Agreeable Gray
Where Mercurial belongs to PPG's range, Agreeable Gray is a Sherwin-Williams color. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. Agreeable Gray (LRV 60) reflects noticeably more light than Mercurial (LRV 44), a difference of 16 points that becomes especially apparent in rooms with limited natural light. The ΔE 9.9 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 9 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Mercurial vs Agreeable Gray in Real Spaces
9 real rooms side by side. Mercurial 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
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Mercurial would.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Mercurial.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Mercurial.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Mercurial.
Home Office
The test for a home office color isn't how it looks in a quick glance — it's whether it still feels right after a full day of work. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Mercurial.
Mudroom
Mudrooms are seen in passing, often under whatever light comes through the door — a context that favors colors with some depth. Agreeable Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. Agreeable Gray reflects noticeably more light off the walls, making the space read more open than Mercurial.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Agreeable Gray will make the room feel meaningfully brighter than Mercurial would.
Color Details
Mercurial vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Mercurial 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 Mercurial comparisons
See how Mercurial stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 44), opening up a space where Mercurial encloses it.
A 8-point LRV gap (52 vs 44) makes Purbeck Stone the marginally brighter of the two.
At LRV 44 vs 30, Mercurial is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 44), opening up a space where Mercurial encloses it.
Mercurial reflects far more light (LRV 44 vs 27), opening up a space where Denim Drift encloses it.
Their light reflectance is nearly identical (LRV 44 vs 43), so neither reads brighter in a room.
Tranquil Dawn reads slightly lighter (LRV 55 vs 44), a gap that shows most in low-lit rooms.
With LRVs of 44 and 44, the two reflect almost the same amount of light.
At LRV 84 vs 44, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 44), opening up a space where Mercurial encloses it.
Shoji White reflects far more light (LRV 74 vs 44), opening up a space where Mercurial encloses it.
Mercurial reflects far more light (LRV 44 vs 12), opening up a space where Pewter Green encloses it.
Mercurial reflects far more light (LRV 44 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 44), opening up a space where Mercurial encloses it.
Mercurial reflects far more light (LRV 44 vs 12), opening up a space where Vintage Vogue encloses it.
With LRVs of 45 and 44, the two reflect almost the same amount of light.
At LRV 44 vs 31, Mercurial is decisively the brighter choice.
At LRV 44 vs 7, Mercurial is decisively the brighter choice.