Castle Walls vs Black grey
Castle Walls is a Benjamin Moore color while Black grey comes from RAL Classic. Hue-wise, Castle Walls belongs to the green-grey family and Black grey to the blue-grey family. At LRV 41 vs 6, Castle Walls will read as the brighter of the two — a 34-point gap that matters most in north-facing or low-light rooms. At ΔE 49.5, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Castle Walls vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Castle Walls 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 Walls comparisons
See how Castle Walls stacks up against other well-photographed colors across different brands and tones.
