Breton Blue vs Peppercorn
Where Breton Blue belongs to Dulux's range, Peppercorn is a Sherwin-Williams color. Hue-wise, Breton Blue belongs to the blue family and Peppercorn to the grey family. They have nearly identical light reflectance values (10 vs 10), so they'll read as similarly Dark in most lighting conditions. Breton Blue runs cool while Peppercorn is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of NaN, 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 5 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Breton Blue vs Peppercorn in Real Spaces
5 real rooms side by side. Seeing Breton Blue and Peppercorn 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 temperature contrast between Peppercorn and Breton Blue is what sets these apart most in this context.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Peppercorn brings more warmth to the space, while Breton Blue keeps things cooler and crisper.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Breton Blue reads more restrained here, while Peppercorn adds a sense of enclosure and warmth.
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. Peppercorn brings more warmth to the space, while Breton Blue keeps things cooler and crisper.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Peppercorn brings more warmth to the space, while Breton Blue keeps things cooler and crisper.
Color Details
Breton Blue vs Peppercorn Simulated Comparison
5 simulated room previews — drag the slider on each to see Breton Blue on one side and Peppercorn 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.
