UltraWhite vs Viaduct
Both from Sherwin-Williams's palette. Hue-wise, UltraWhite belongs to the white-yellow family and Viaduct to the greige-grey family. UltraWhite (LRV 94) reflects noticeably more light than Viaduct (LRV 50), a difference of 43 points that becomes especially apparent in rooms with limited natural light. UltraWhite runs neutral while Viaduct is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 21.4, 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
UltraWhite vs Viaduct Simulated Comparison
5 simulated room previews — drag the slider on each to see UltraWhite 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 UltraWhite comparisons
See how UltraWhite stacks up against other well-photographed colors across different brands and tones.
