Black grey vs Big Dipper
Where Black grey belongs to RAL Classic's range, Big Dipper is a Sherwin-Williams color. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. They have nearly identical light reflectance values (6 vs 6), so they'll read as similarly Dark in most lighting conditions. With a ΔE of 10.0, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. 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 Big Dipper Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and Big Dipper 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.








































