Stone Castle vs Black grey
Where Stone Castle belongs to Benjamin Moore's range, Black grey is a RAL Classic color. Hue-wise, Stone Castle belongs to the beige-greige family and Black grey to the blue-grey family. Stone Castle (LRV 51) reflects noticeably more light than Black grey (LRV 6), a difference of 44 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 57.8, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Stone Castle vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Stone Castle 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 Stone Castle comparisons
See how Stone Castle stacks up against other well-photographed colors across different brands and tones.
