Alloy vs Viaduct
Both from Sherwin-Williams's palette. Alloy reads as grey, while Viaduct reads as greige-grey — two distinct hue families, not close cousins. Viaduct (LRV 50) reflects noticeably more light than Alloy (LRV 25), a difference of 25 points that becomes especially apparent in rooms with limited natural light. Alloy runs neutral while Viaduct is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 18.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Alloy vs Viaduct Simulated Comparison
5 simulated room previews — drag the slider on each to see Alloy on one side and Viaduct 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 Alloy comparisons
See how Alloy stacks up against other well-photographed colors across different brands and tones.








































