S 2502-Y20R vs Viaduct
S 2502-Y20R (NCS) and Viaduct (Sherwin-Williams) come from different manufacturers. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. The 3-point LRV gap — 53 for S 2502-Y20R vs 50 for Viaduct — means S 2502-Y20R will open up a space more effectively. Both share a warm character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 2.8 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
S 2502-Y20R vs Viaduct Simulated Comparison
5 simulated room previews — drag the slider on each to see S 2502-Y20R 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 S 2502-Y20R comparisons
See how S 2502-Y20R stacks up against other well-photographed colors across different brands and tones.
