Stiffkey Blue vs Black grey
Stiffkey Blue (Farrow & Ball) and Black grey (RAL Classic) come from different manufacturers. Stiffkey Blue reads as blue, while Black grey reads as blue-grey — two distinct hue families, not close cousins. The 4-point LRV gap — 10 for Stiffkey Blue vs 6 for Black grey — means Stiffkey Blue will open up a space more effectively. A ΔE of 19.5 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Stiffkey Blue vs Black grey in Real Spaces
4 real rooms side by side. Seeing Stiffkey Blue 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. Stiffkey Blue 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. Stiffkey Blue has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. Stiffkey Blue reads slightly lighter here — a subtle but real difference in how open the space feels.
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. Stiffkey Blue has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Stiffkey Blue vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Stiffkey Blue 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 Stiffkey Blue comparisons
See how Stiffkey Blue stacks up against other well-photographed colors across different brands and tones.
