Extra White vs Thames Fog
Extra White (Sherwin-Williams) and Thames Fog (Valspar) come from different manufacturers. Hue-wise, Extra White belongs to the white family and Thames Fog to the grey family. The 58-point LRV gap — 86 for Extra White vs 27 for Thames Fog — means Extra White will open up a space more effectively. A ΔE of 35.3 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Extra White vs Thames Fog in Real Spaces
3 real rooms side by side. Seeing Extra White 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. Extra White reflects noticeably more light off the walls, making the space read more open than Thames Fog.
Dining Room
Dining rooms often rely on warm incandescent or candlelight, which flatters warm undertones and mutes cool ones. The LRV gap is large enough that Extra White will make the room feel meaningfully brighter than Thames Fog would.
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. Extra White returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Extra White vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Extra White 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 Extra White comparisons
See how Extra White stacks up against other well-photographed colors across different brands and tones.
