Thundercloud Gray vs Thames Fog
Where Thundercloud Gray belongs to Benjamin Moore's range, Thames Fog is a Valspar color. Hue-wise, Thundercloud Gray belongs to the blue-grey family and Thames Fog to the grey family. Thundercloud Gray (LRV 50) reflects noticeably more light than Thames Fog (LRV 27), a difference of 23 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 19.5, 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 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Thundercloud Gray vs Thames Fog in Real Spaces
2 real rooms side by side. Seeing Thundercloud Gray and Thames Fog in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. Thundercloud Gray reflects noticeably more light off the walls, making the space read more open than Thames Fog.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Thundercloud Gray reflects noticeably more light off the walls, making the space read more open than Thames Fog.
Color Details
Thundercloud Gray vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Thundercloud 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 Thundercloud Gray comparisons
See how Thundercloud Gray stacks up against other well-photographed colors across different brands and tones.
