Gem Silica vs French Gray
Where Gem Silica belongs to Behr's range, French Gray is a Farrow & Ball color. Gem Silica reads as green, while French Gray reads as beige-green — two distinct hue families, not close cousins. French Gray (LRV 43) reflects noticeably more light than Gem Silica (LRV 39), a difference of 4 points that becomes especially apparent in rooms with limited natural light. Gem Silica runs green while French Gray is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 29.9, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Gem Silica vs French Gray in Real Spaces
5 real rooms side by side. Seeing Gem Silica and French 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
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 brightness difference is modest but present — French Gray gives the walls a little more lift.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. French Gray reads slightly lighter here — a subtle but real difference in how open the space feels.
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. French Gray reads slightly lighter here — a subtle but real difference in how open the space feels.
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. French Gray reads slightly lighter here — a subtle but real difference in how open the space feels.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. French Gray reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Gem Silica vs French Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Gem Silica on one side and French 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 Gem Silica comparisons
See how Gem Silica stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 39, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 39), opening up a space where Gem Silica encloses it.
At LRV 39 vs 6, Gem Silica is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 39), opening up a space where Gem Silica encloses it.
Gem Silica reads slightly lighter (LRV 39 vs 30), a gap that shows most in low-lit rooms.
At LRV 52 vs 39, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 39), opening up a space where Gem Silica encloses it.
At LRV 58 vs 39, Accessible Beige is decisively the brighter choice.
At LRV 39 vs 27, Gem Silica is decisively the brighter choice.
Gem Silica reflects far more light (LRV 39 vs 4), opening up a space where Naval encloses it.
At LRV 55 vs 39, Tranquil Dawn is decisively the brighter choice.
At LRV 39 vs 13, Gem Silica is decisively the brighter choice.
A 4-point LRV gap (44 vs 39) makes Hardwick White the marginally brighter of the two.
Pure White reflects far more light (LRV 84 vs 39), opening up a space where Gem Silica encloses it.
Gem Silica reflects far more light (LRV 39 vs 21), opening up a space where Artichoke encloses it.
At LRV 66 vs 39, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 39, Shoji White is decisively the brighter choice.
At LRV 83 vs 39, Snowbound is decisively the brighter choice.
At LRV 39 vs 12, Gem Silica is decisively the brighter choice.
At LRV 68 vs 39, Skimming Stone is decisively the brighter choice.
With LRVs of 41 and 39, the two reflect almost the same amount of light.
Calamine reflects far more light (LRV 68 vs 39), opening up a space where Gem Silica encloses it.
Gem Silica reflects far more light (LRV 39 vs 25), opening up a space where Treron encloses it.
At LRV 39 vs 12, Gem Silica is decisively the brighter choice.
A 6-point LRV gap (45 vs 39) makes Saybrook Sage the marginally brighter of the two.
Gem Silica reads slightly lighter (LRV 39 vs 31), a gap that shows most in low-lit rooms.
Gem Silica reflects far more light (LRV 39 vs 7), opening up a space where Pine Needle encloses it.
Gem Silica reflects far more light (LRV 39 vs 24), opening up a space where Cement grey encloses it.
Guilford Green reflects far more light (LRV 57 vs 39), opening up a space where Gem Silica encloses it.
Just Walnut reflects far more light (LRV 72 vs 39), opening up a space where Gem Silica encloses it.