Castle Peak Gray vs Black grey
Where Castle Peak Gray belongs to Benjamin Moore's range, Black grey is a RAL Classic color. Castle Peak Gray reads as greige-grey, while Black grey reads as blue-grey — two distinct hue families, not close cousins. Castle Peak Gray (LRV 15) reflects noticeably more light than Black grey (LRV 6), a difference of 8 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 25.4, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Castle Peak Gray vs Black grey in Real Spaces
1 real room side by side. Seeing Castle Peak Gray 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.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. Castle Peak Gray reflects noticeably more light off the walls, making the space read more open than Black grey.
Color Details
Castle Peak Gray vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Castle Peak Gray 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 Castle Peak Gray comparisons
See how Castle Peak Gray stacks up against other well-photographed colors across different brands and tones.
