Light grey vs Thames Fog
Light grey (RAL Classic) and Thames Fog (Valspar) come from different manufacturers. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. The 31-point LRV gap — 58 for Light grey vs 27 for Thames Fog — means Light grey will open up a space more effectively. A ΔE of 21.6 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.
Light grey vs Thames Fog in Real Spaces
2 real rooms side by side. Seeing Light 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. Light grey reflects noticeably more light off the walls, making the space read more open than Thames Fog.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Light 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
Light grey vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Light 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 Light grey comparisons
See how Light grey stacks up against other well-photographed colors across different brands and tones.
