Castle Walls vs S 3010-B90G
Where Castle Walls belongs to Benjamin Moore's range, S 3010-B90G is a NCS color. Both sit in the green-grey family, which is useful context if you're narrowing within a single hue direction. They have nearly identical light reflectance values (41 vs 40), so they'll read as similarly Medium in most lighting conditions. Castle Walls runs green while S 3010-B90G is decidedly cool, which means they'll respond very differently to warm vs cool light sources. At ΔE 2.3, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. 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 S 3010-B90G Simulated Comparison
5 simulated room previews — drag the slider on each to see Castle Walls on one side and S 3010-B90G 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.
