S 1500-N vs Allegheny River
S 1500-N is a NCS color while Allegheny River comes from PPG. Hue-wise, S 1500-N belongs to the greige-grey family and Allegheny River to the grey family. With LRVs of 64 and 62, they'll behave almost identically in terms of how much light they reflect back into a room. With a ΔE of 1.2, the difference is subtle — you'd need them side by side to reliably tell them apart. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
S 1500-N vs Allegheny River in Real Spaces
2 real rooms side by side. S 1500-N and Allegheny River are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. In photos like these you're seeing the difference at its most direct. In a finished room, the distinction is there but not dramatic.
Dining Room
Dining room light is typically the warmest in the house, which shifts both colors toward the red end of the spectrum compared to daylight. At this scale the difference is subtle — you'd need them side by side, as shown here, to reliably tell them apart.
Color Details
S 1500-N vs Allegheny River Simulated Comparison
5 simulated room previews — drag the slider on each to see S 1500-N on one side and Allegheny River 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 1500-N comparisons
See how S 1500-N stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 64), opening up a space where S 1500-N encloses it.
At LRV 64 vs 52, S 1500-N is decisively the brighter choice.
At LRV 64 vs 30, S 1500-N is decisively the brighter choice.
A 4-point LRV gap (64 vs 60) makes S 1500-N the marginally brighter of the two.
S 1500-N reads slightly lighter (LRV 64 vs 58), a gap that shows most in low-lit rooms.
S 1500-N reflects far more light (LRV 64 vs 27), opening up a space where Denim Drift encloses it.
At LRV 64 vs 43, S 1500-N is decisively the brighter choice.
S 1500-N reads slightly lighter (LRV 64 vs 55), a gap that shows most in low-lit rooms.
S 1500-N reflects far more light (LRV 64 vs 44), opening up a space where Hardwick White encloses it.
At LRV 84 vs 64, Pure White is decisively the brighter choice.
With LRVs of 66 and 64, the two reflect almost the same amount of light.
Shoji White reads slightly lighter (LRV 74 vs 64), a gap that shows most in low-lit rooms.
S 1500-N reflects far more light (LRV 64 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reads slightly lighter (LRV 68 vs 64), a gap that shows most in low-lit rooms.
S 1500-N reflects far more light (LRV 64 vs 12), opening up a space where Vintage Vogue encloses it.
S 1500-N reflects far more light (LRV 64 vs 45), opening up a space where Saybrook Sage encloses it.
At LRV 64 vs 31, S 1500-N is decisively the brighter choice.
At LRV 64 vs 7, S 1500-N is decisively the brighter choice.
At LRV 64 vs 24, S 1500-N is decisively the brighter choice.
A 7-point LRV gap (64 vs 57) makes S 1500-N the marginally brighter of the two.