Mercurial vs RAL 850-2
Where Mercurial belongs to PPG's range, RAL 850-2 is a RAL Effect color. Hue-wise, Mercurial belongs to the greige-grey family and RAL 850-2 to the grey family. They have nearly identical light reflectance values (44 vs 44), so they'll read as similarly Medium in most lighting conditions. At ΔE 2.3, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Mercurial vs RAL 850-2 in Real Spaces
3 real rooms side by side. Mercurial and RAL 850-2 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 two are close enough that the choice comes down to finer qualities — undertone, texture, what the color sits next to.
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. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
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. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Color Details
Mercurial vs RAL 850-2 Simulated Comparison
5 simulated room previews — drag the slider on each to see Mercurial on one side and RAL 850-2 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.
At LRV 60 vs 44, Agreeable Gray 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.