City Fog vs Black grey
City Fog (Dulux) and Black grey (RAL Classic) come from different manufacturers. City Fog reads as grey, while Black grey reads as blue-grey — two distinct hue families, not close cousins. The 9-point LRV gap — 15 for City Fog vs 6 for Black grey — means City Fog will open up a space more effectively. A ΔE of 22.7 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
City Fog vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see City Fog on one side and Black grey 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 City Fog comparisons
See how City Fog stacks up against other well-photographed colors across different brands and tones.








































