River Gorge Gray vs Thames Fog
Where River Gorge Gray belongs to Benjamin Moore's range, Thames Fog is a Valspar color. Hue-wise, River Gorge Gray belongs to the greige-grey family and Thames Fog to the grey family. River Gorge Gray (LRV 33) reflects noticeably more light than Thames Fog (LRV 27), a difference of 5 points that becomes especially apparent in rooms with limited natural light. The ΔE 5.4 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
River Gorge Gray vs Thames Fog in Real Spaces
1 real room side by side. River Gorge Gray and Thames Fog 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 brightness difference is modest but present — River Gorge Gray gives the walls a little more lift.
Color Details
River Gorge Gray vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see River Gorge Gray on one side and Thames Fog 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 River Gorge Gray comparisons
See how River Gorge Gray stacks up against other well-photographed colors across different brands and tones.
At LRV 69 vs 33, Ammonite is decisively the brighter choice.
White Dove reflects far more light (LRV 83 vs 33), opening up a space where River Gorge Gray encloses it.
River Gorge Gray reflects far more light (LRV 33 vs 6), opening up a space where Iron Ore encloses it.
At LRV 52 vs 33, Purbeck Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 33 vs 30), so neither reads brighter in a room.
Mizzle reflects far more light (LRV 52 vs 33), opening up a space where River Gorge Gray encloses it.
At LRV 60 vs 33, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 33), opening up a space where River Gorge Gray encloses it.
River Gorge Gray reads slightly lighter (LRV 33 vs 27), a gap that shows most in low-lit rooms.
A 10-point LRV gap (43 vs 33) makes French Gray the marginally brighter of the two.
At LRV 33 vs 4, River Gorge Gray is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 33), opening up a space where River Gorge Gray encloses it.
River Gorge Gray reflects far more light (LRV 33 vs 13), opening up a space where Bancha encloses it.
Hardwick White reads slightly lighter (LRV 44 vs 33), a gap that shows most in low-lit rooms.
At LRV 84 vs 33, Pure White is decisively the brighter choice.
A 11-point LRV gap (33 vs 21) makes River Gorge Gray the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 33), opening up a space where River Gorge Gray encloses it.
Shoji White reflects far more light (LRV 74 vs 33), opening up a space where River Gorge Gray encloses it.
Snowbound reflects far more light (LRV 83 vs 33), opening up a space where River Gorge Gray encloses it.
At LRV 51 vs 33, Pigeon is decisively the brighter choice.
River Gorge Gray reflects far more light (LRV 33 vs 12), opening up a space where Pewter Green encloses it.
River Gorge Gray reflects far more light (LRV 33 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 33), opening up a space where River Gorge Gray encloses it.
A 8-point LRV gap (41 vs 33) makes Dix Blue the marginally brighter of the two.
River Gorge Gray reflects far more light (LRV 33 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reflects far more light (LRV 45 vs 33), opening up a space where River Gorge Gray encloses it.
Their light reflectance is nearly identical (LRV 33 vs 31), so neither reads brighter in a room.