Traffic grey A vs Thames Fog
Traffic grey A is a RAL Classic color while Thames Fog comes from Valspar. These are both greys, so the question isn't which hue to choose — it's where within grey to land. At LRV 31 vs 27, Traffic grey A will read as the brighter of the two — a 4-point gap that matters most in north-facing or low-light rooms. At ΔE 7.5, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Traffic grey A vs Thames Fog in Real Spaces
2 real rooms side by side. Traffic grey A and Thames Fog are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Traffic grey A has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The brightness difference is modest but present — Traffic grey A gives the walls a little more lift.
Color Details
Traffic grey A vs Thames Fog Simulated Comparison
5 simulated room previews — drag the slider on each to see Traffic grey A 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 Traffic grey A comparisons
See how Traffic grey A stacks up against other well-photographed colors across different brands and tones.
