Subzero Blue vs Black grey
Subzero Blue is a Dulux color while Black grey comes from RAL Classic. Hue-wise, Subzero Blue belongs to the blue family and Black grey to the blue-grey family. With LRVs of 8 and 6, they'll behave almost identically in terms of how much light they reflect back into a room. At ΔE 27.6, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Subzero Blue vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Subzero Blue 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 Subzero Blue comparisons
See how Subzero Blue stacks up against other well-photographed colors across different brands and tones.
