Breton Blue vs Thimble Case
Breton Blue and Thimble Case come from the same Dulux collection. Hue-wise, Breton Blue belongs to the blue family and Thimble Case to the greige-grey family. The 58-point LRV gap — 68 for Thimble Case vs 10 for Breton Blue — means Thimble Case will open up a space more effectively. Where Breton Blue leans cool, Thimble Case reads warm — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 52.6 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Breton Blue vs Thimble Case in Real Spaces
3 real rooms side by side. Seeing Breton Blue and Thimble Case 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
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. Thimble Case reflects noticeably more light off the walls, making the space read more open than Breton Blue.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Thimble Case returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bathroom
Small bathrooms intensify color. A shade that seems quiet in a larger room can feel immersive when you're surrounded by it on four walls. Thimble Case returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Breton Blue vs Thimble Case Simulated Comparison
5 simulated room previews — drag the slider on each to see Breton Blue on one side and Thimble Case 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.