Techno Gray vs Viaduct
Techno Gray and Viaduct come from the same Sherwin-Williams collection. These are both greige-greys, so the question isn't which hue to choose — it's where within greige-grey to land. Their light reflectance values are nearly the same — 49 vs 50 — so neither will read significantly brighter or darker than the other. Both share a warm character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 2.3 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
Techno Gray vs Viaduct Simulated Comparison
5 simulated room previews — drag the slider on each to see Techno Gray 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 Techno Gray comparisons
See how Techno Gray stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 49), opening up a space where Techno Gray encloses it.
At LRV 69 vs 49, Ammonite is decisively the brighter choice.
Techno Gray reflects far more light (LRV 49 vs 6), opening up a space where Iron Ore encloses it.
A 3-point LRV gap (52 vs 49) makes Purbeck Stone the marginally brighter of the two.
At LRV 49 vs 30, Techno Gray is decisively the brighter choice.
With LRVs of 52 and 49, the two reflect almost the same amount of light.
A 12-point LRV gap (60 vs 49) makes Agreeable Gray the marginally brighter of the two.
Accessible Beige reads slightly lighter (LRV 58 vs 49), a gap that shows most in low-lit rooms.
Techno Gray reflects far more light (LRV 49 vs 27), opening up a space where Denim Drift encloses it.
A 5-point LRV gap (49 vs 43) makes Techno Gray the marginally brighter of the two.
At LRV 49 vs 4, Techno Gray is decisively the brighter choice.
Tranquil Dawn reads slightly lighter (LRV 55 vs 49), a gap that shows most in low-lit rooms.
Techno Gray reflects far more light (LRV 49 vs 13), opening up a space where Bancha encloses it.
Techno Gray reads slightly lighter (LRV 49 vs 44), a gap that shows most in low-lit rooms.
At LRV 84 vs 49, Pure White is decisively the brighter choice.
At LRV 49 vs 21, Techno Gray is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 49), opening up a space where Techno Gray encloses it.
Shoji White reflects far more light (LRV 74 vs 49), opening up a space where Techno Gray encloses it.
Snowbound reflects far more light (LRV 83 vs 49), opening up a space where Techno Gray encloses it.
Techno Gray reflects far more light (LRV 49 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 49), opening up a space where Techno Gray encloses it.
A 8-point LRV gap (49 vs 41) makes Techno Gray the marginally brighter of the two.
At LRV 68 vs 49, Calamine is decisively the brighter choice.
At LRV 49 vs 25, Techno Gray is decisively the brighter choice.
Techno Gray reflects far more light (LRV 49 vs 12), opening up a space where Vintage Vogue encloses it.
Techno Gray reads slightly lighter (LRV 49 vs 45), a gap that shows most in low-lit rooms.
At LRV 49 vs 31, Techno Gray is decisively the brighter choice.
At LRV 49 vs 7, Techno Gray is decisively the brighter choice.
At LRV 49 vs 24, Techno Gray is decisively the brighter choice.
A 9-point LRV gap (57 vs 49) makes Guilford Green the marginally brighter of the two.