Ultra Pure White vs Thames Fog
Where Ultra Pure White belongs to Behr's range, Thames Fog is a Valspar color. Hue-wise, Ultra Pure White belongs to the white-yellow family and Thames Fog to the grey family. Ultra Pure White (LRV 94) reflects noticeably more light than Thames Fog (LRV 27), a difference of 67 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 38.7, 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.
Ultra Pure White vs Thames Fog in Real Spaces
2 real rooms side by side. Seeing Ultra Pure 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
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 LRV gap is large enough that Ultra Pure White will make the room feel meaningfully brighter than Thames Fog would.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Ultra Pure White reflects noticeably more light off the walls, making the space read more open than Thames Fog.
Color Details
Ultra Pure White vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Ultra Pure 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 Ultra Pure White comparisons
See how Ultra Pure White stacks up against other well-photographed colors across different brands and tones.
