Sapphire Splendor vs Grey Blue
Where Sapphire Splendor belongs to Dulux's range, Grey Blue is a RAL Classic 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 (5 vs 7), so they'll read as similarly Dark in most lighting conditions. The ΔE 4.4 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Sapphire Splendor vs Grey Blue in Real Spaces
1 real room side by side. Sapphire Splendor and Grey Blue 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.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Sapphire Splendor vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Sapphire Splendor on one side and Grey Blue 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.
