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.
White Dove reflects far more light (LRV 83 vs 53), opening up a space where S 2502-Y20R encloses it.
At LRV 69 vs 53, Ammonite is decisively the brighter choice.
S 2502-Y20R reflects far more light (LRV 53 vs 6), opening up a space where Iron Ore encloses it.
Their light reflectance is nearly identical (LRV 53 vs 52), so neither reads brighter in a room.
At LRV 53 vs 30, S 2502-Y20R is decisively the brighter choice.
With LRVs of 53 and 52, the two reflect almost the same amount of light.
A 7-point LRV gap (60 vs 53) makes Agreeable Gray the marginally brighter of the two.
Accessible Beige reads slightly lighter (LRV 58 vs 53), a gap that shows most in low-lit rooms.
S 2502-Y20R reflects far more light (LRV 53 vs 27), opening up a space where Denim Drift encloses it.
A 10-point LRV gap (53 vs 43) makes S 2502-Y20R the marginally brighter of the two.
At LRV 53 vs 4, S 2502-Y20R is decisively the brighter choice.
With LRVs of 55 and 53, the two reflect almost the same amount of light.
S 2502-Y20R reflects far more light (LRV 53 vs 13), opening up a space where Bancha encloses it.
S 2502-Y20R reads slightly lighter (LRV 53 vs 44), a gap that shows most in low-lit rooms.
At LRV 84 vs 53, Pure White is decisively the brighter choice.
At LRV 53 vs 21, S 2502-Y20R is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 53), opening up a space where S 2502-Y20R encloses it.
Shoji White reflects far more light (LRV 74 vs 53), opening up a space where S 2502-Y20R encloses it.
Snowbound reflects far more light (LRV 83 vs 53), opening up a space where S 2502-Y20R encloses it.
S 2502-Y20R reflects far more light (LRV 53 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 53), opening up a space where S 2502-Y20R encloses it.
At LRV 53 vs 41, S 2502-Y20R is decisively the brighter choice.
At LRV 68 vs 53, Calamine is decisively the brighter choice.
At LRV 53 vs 25, S 2502-Y20R is decisively the brighter choice.
S 2502-Y20R reflects far more light (LRV 53 vs 12), opening up a space where Vintage Vogue encloses it.
S 2502-Y20R reads slightly lighter (LRV 53 vs 45), a gap that shows most in low-lit rooms.
At LRV 53 vs 31, S 2502-Y20R is decisively the brighter choice.
At LRV 53 vs 7, S 2502-Y20R is decisively the brighter choice.
At LRV 53 vs 24, S 2502-Y20R is decisively the brighter choice.
A 4-point LRV gap (57 vs 53) makes Guilford Green the marginally brighter of the two.