Castle Peak Gray vs RAL 780-6
Where Castle Peak Gray belongs to Benjamin Moore's range, RAL 780-6 is a RAL Effect color. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. They have nearly identical light reflectance values (15 vs 15), so they'll read as similarly Dark in most lighting conditions. The ΔE 4.6 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. 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 RAL 780-6 in Real Spaces
1 real room side by side. Castle Peak Gray and RAL 780-6 are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Castle Peak Gray vs RAL 780-6 Simulated Comparison
5 simulated room previews — drag the slider on each to see Castle Peak Gray on one side and RAL 780-6 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.
