Window grey vs Thames Fog
Window grey (RAL Classic) and Thames Fog (Valspar) come from different manufacturers. Hue-wise, Window grey belongs to the blue-grey family and Thames Fog to the grey family. The 8-point LRV gap — 36 for Window grey vs 27 for Thames Fog — means Window grey will open up a space more effectively. A ΔE of 11.1 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Window grey vs Thames Fog in Real Spaces
2 real rooms side by side. Seeing Window grey 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.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Window grey reflects noticeably more light off the walls, making the space read more open than Thames Fog.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Window grey returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Window grey vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Window grey 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 Window grey comparisons
See how Window grey stacks up against other well-photographed colors across different brands and tones.
