Black grey vs Outerspace
Black grey (RAL Classic) and Outerspace (Sherwin-Williams) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. The 5-point LRV gap — 12 for Outerspace vs 6 for Black grey — means Outerspace will open up a space more effectively. A ΔE of 20.4 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.
Black grey vs Outerspace in Real Spaces
3 real rooms side by side. Seeing Black grey and Outerspace 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. Outerspace reads slightly lighter here — a subtle but real difference in how open the space feels.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. Outerspace has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. Outerspace has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Black grey vs Outerspace Simulated Comparison
5 simulated room previews — drag the slider on each to see Black grey on one side and Outerspace 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 Black grey comparisons
See how Black grey stacks up against other well-photographed colors across different brands and tones.
