Sapphire Splendor vs Black grey
Sapphire Splendor (Dulux) and Black grey (RAL Classic) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. Their light reflectance values are nearly the same — 5 vs 6 — so neither will read significantly brighter or darker than the other. ΔE 8.9 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Sapphire Splendor vs Black grey in Real Spaces
1 real room side by side. Sapphire Splendor and Black grey are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Sapphire Splendor vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Sapphire Splendor 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 Sapphire Splendor comparisons
See how Sapphire Splendor stacks up against other well-photographed colors across different brands and tones.










































