Breton Blue vs Sapphire blue
Where Breton Blue belongs to Dulux's range, Sapphire blue is a RAL Classic color. These are both blues, so the question isn't which hue to choose — it's where within blue to land. Breton Blue (LRV 10) reflects noticeably more light than Sapphire blue (LRV 6), a difference of 4 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 14.9, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Breton Blue vs Sapphire blue in Real Spaces
4 real rooms side by side. Seeing Breton Blue and Sapphire blue in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The brightness difference is modest but present — Breton Blue gives the walls a little more lift.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Breton Blue reads slightly lighter here — a subtle but real difference in how open the space feels.
Bathroom
Bathrooms are one of the few spaces where you're genuinely enclosed by the paint color, which makes the choice between these two more consequential. Breton Blue reads slightly lighter here — a subtle but real difference in how open the space feels.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Breton Blue reads slightly lighter here — a subtle but real difference in how open the space feels.
Color Details
Breton Blue vs Sapphire blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Breton Blue on one side and Sapphire 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 Breton Blue comparisons
See how Breton Blue stacks up against other well-photographed colors across different brands and tones.
