Iron Mountain vs Westchester Gray
Iron Mountain (Behr) and Westchester Gray (Sherwin-Williams) come from different manufacturers. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. Their light reflectance values are nearly the same — 18 vs 19 — so neither will read significantly brighter or darker than the other. Where Iron Mountain leans yellow, Westchester Gray reads neutral — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 1.6 puts them in subtle territory — distinguishable in direct comparison, less so from across a 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
Iron Mountain vs Westchester Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Iron Mountain on one side and Westchester Gray 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 Iron Mountain comparisons
See how Iron Mountain stacks up against other well-photographed colors across different brands and tones.
