Pure Brilliant White vs Thames Fog
Where Pure Brilliant White belongs to Dulux's range, Thames Fog is a Valspar color. Pure Brilliant White reads as greige-white, while Thames Fog reads as grey — two distinct hue families, not close cousins. Pure Brilliant White (LRV 84) reflects noticeably more light than Thames Fog (LRV 27), a difference of 56 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 34.4, 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 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Pure Brilliant White vs Thames Fog in Real Spaces
3 real rooms side by side. Seeing Pure Brilliant 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 Pure Brilliant White will make the room feel meaningfully brighter than Thames Fog would.
@aspen.home.x
@melaniejadedesign
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Pure Brilliant White reflects noticeably more light off the walls, making the space read more open than Thames Fog.
@no8_renovate
@thelancashireterrace
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. Pure Brilliant White reflects noticeably more light off the walls, making the space read more open than Thames Fog.
@al_decorating
@bellwaycherry17
Color Details
Pure Brilliant White vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Pure Brilliant 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 Pure Brilliant White comparisons
See how Pure Brilliant White stacks up against other well-photographed colors across different brands and tones.
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