Black grey vs Summer Day
Black grey (RAL Classic) and Summer Day (Sherwin-Williams) come from different manufacturers. Black grey reads as blue-grey, while Summer Day reads as beige — two distinct hue families, not close cousins. The 41-point LRV gap — 47 for Summer Day vs 6 for Black grey — means Summer Day will open up a space more effectively. A ΔE of 73.7 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
Black grey vs Summer Day Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and Summer Day 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 Black grey comparisons
See how Black grey stacks up against other well-photographed colors across different brands and tones.
