Portland Gray vs Thames Fog
Where Portland Gray belongs to Benjamin Moore's range, Thames Fog is a Valspar color. Portland Gray reads as greige-grey, while Thames Fog reads as grey — two distinct hue families, not close cousins. Portland Gray (LRV 60) reflects noticeably more light than Thames Fog (LRV 27), a difference of 33 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 23.9, 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.
Portland Gray vs Thames Fog in Real Spaces
2 real rooms side by side. Seeing Portland 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.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Portland Gray returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
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. Portland Gray reflects noticeably more light off the walls, making the space read more open than Thames Fog.
Color Details
Portland Gray vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Portland 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 Portland Gray comparisons
See how Portland Gray stacks up against other well-photographed colors across different brands and tones.
