Morning Jewel 4 vs Black grey
Morning Jewel 4 (Dulux) and Black grey (RAL Classic) come from different manufacturers. Morning Jewel 4 reads as blue, while Black grey reads as blue-grey — two distinct hue families, not close cousins. The 40-point LRV gap — 46 for Morning Jewel 4 vs 6 for Black grey — means Morning Jewel 4 will open up a space more effectively. A ΔE of 53.0 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
Morning Jewel 4 vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Morning Jewel 4 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 Morning Jewel 4 comparisons
See how Morning Jewel 4 stacks up against other well-photographed colors across different brands and tones.








































