Ironclad vs Viaduct
Both are Sherwin-Williams colors. Hue-wise, Ironclad belongs to the grey family and Viaduct to the greige-grey family. At LRV 50 vs 11, Viaduct will read as the brighter of the two — a 39-point gap that matters most in north-facing or low-light rooms. The tonal difference — Ironclad's neutral character against Viaduct's warm — becomes most visible against white trim or in morning light. At ΔE 36.8, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Ironclad vs Viaduct Simulated Comparison
5 simulated room previews — drag the slider on each to see Ironclad 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 Ironclad comparisons
See how Ironclad stacks up against other well-photographed colors across different brands and tones.
