Thimble Case vs Black grey
Thimble Case (Dulux) and Black grey (RAL Classic) come from different manufacturers. Thimble Case reads as greige-grey, while Black grey reads as blue-grey — two distinct hue families, not close cousins. The 62-point LRV gap — 68 for Thimble Case vs 6 for Black grey — means Thimble Case will open up a space more effectively. A ΔE of 64.7 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Thimble Case vs Black grey in Real Spaces
1 real room side by side. Seeing Thimble Case and Black grey 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 Black grey.
Color Details
Thimble Case vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Thimble Case 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 Thimble Case comparisons
See how Thimble Case stacks up against other well-photographed colors across different brands and tones.










































