Cathedral Gray vs Mineral Alloy
Both are Benjamin Moore colors. Cathedral Gray reads as greige-grey, while Mineral Alloy reads as blue-grey — two distinct hue families, not close cousins. With LRVs of 26 and 28, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — Cathedral Gray's red character against Mineral Alloy's blue — becomes most visible against white trim or in morning light. At ΔE 16.8, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cathedral Gray vs Mineral Alloy in Real Spaces
2 real rooms side by side. Seeing Cathedral Gray and Mineral Alloy in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Mineral Alloy reads more restrained here, while Cathedral Gray adds a sense of enclosure and warmth.
Dining Room
Dining room light is typically the warmest in the house, which shifts both colors toward the red end of the spectrum compared to daylight. Cathedral Gray brings more warmth to the space, while Mineral Alloy keeps things cooler and crisper.
Color Details
Cathedral Gray vs Mineral Alloy Simulated Comparison
5 simulated room previews — drag the slider on each to see Cathedral Gray on one side and Mineral Alloy 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 Cathedral Gray comparisons
See how Cathedral Gray stacks up against other well-photographed colors across different brands and tones.
