Online vs Thames Fog
Online (Sherwin-Williams) and Thames Fog (Valspar) come from different manufacturers. These are both greys, so the question isn't which hue to choose — it's where within grey to land. The 18-point LRV gap — 45 for Online vs 27 for Thames Fog — means Online will open up a space more effectively. A ΔE of 16.1 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.
Online vs Thames Fog in Real Spaces
3 real rooms side by side. Seeing Online 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. Online reflects noticeably more light off the walls, making the space read more open than Thames Fog.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Online returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
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. Online returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Online vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Online 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 Online comparisons
See how Online stacks up against other well-photographed colors across different brands and tones.
