River Rock vs Pewter Green
River Rock (PPG) and Pewter Green (Sherwin-Williams) come from different manufacturers. Hue-wise, River Rock belongs to the beige-greige family and Pewter Green to the green-grey family. The 50-point LRV gap — 62 for River Rock vs 12 for Pewter Green — means River Rock will open up a space more effectively. A ΔE of 42.5 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
River Rock vs Pewter Green Simulated Comparison
5 simulated room previews — drag the slider on each to see River Rock on one side and Pewter Green 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 River Rock comparisons
See how River Rock stacks up against other well-photographed colors across different brands and tones.

A 7-point LRV gap (69 vs 62) makes Ammonite the marginally brighter of the two.

White Dove reflects far more light (LRV 83 vs 62), opening up a space where River Rock encloses it.

River Rock reflects far more light (LRV 62 vs 6), opening up a space where Iron Ore encloses it.

A 10-point LRV gap (62 vs 52) makes River Rock the marginally brighter of the two.

At LRV 62 vs 30, River Rock is decisively the brighter choice.

River Rock reads slightly lighter (LRV 62 vs 52), a gap that shows most in low-lit rooms.

Their light reflectance is nearly identical (LRV 62 vs 60), so neither reads brighter in a room.

River Rock reads slightly lighter (LRV 62 vs 58), a gap that shows most in low-lit rooms.

River Rock reflects far more light (LRV 62 vs 27), opening up a space where Denim Drift encloses it.

At LRV 62 vs 43, River Rock is decisively the brighter choice.

At LRV 62 vs 4, River Rock is decisively the brighter choice.

River Rock reads slightly lighter (LRV 62 vs 55), a gap that shows most in low-lit rooms.

River Rock reflects far more light (LRV 62 vs 13), opening up a space where Bancha encloses it.

River Rock reflects far more light (LRV 62 vs 44), opening up a space where Hardwick White encloses it.

At LRV 84 vs 62, Pure White is decisively the brighter choice.

At LRV 62 vs 21, River Rock is decisively the brighter choice.

Balboa Mist reads slightly lighter (LRV 66 vs 62), a gap that shows most in low-lit rooms.

Shoji White reflects far more light (LRV 74 vs 62), opening up a space where River Rock encloses it.

Snowbound reflects far more light (LRV 83 vs 62), opening up a space where River Rock encloses it.

A 11-point LRV gap (62 vs 51) makes River Rock the marginally brighter of the two.

River Rock reflects far more light (LRV 62 vs 8), opening up a space where Duck Green encloses it.

Skimming Stone reads slightly lighter (LRV 68 vs 62), a gap that shows most in low-lit rooms.

At LRV 62 vs 41, River Rock is decisively the brighter choice.

River Rock reflects far more light (LRV 62 vs 12), opening up a space where Vintage Vogue encloses it.

River Rock reflects far more light (LRV 62 vs 45), opening up a space where Saybrook Sage encloses it.

At LRV 62 vs 31, River Rock is decisively the brighter choice.

At LRV 62 vs 7, River Rock is decisively the brighter choice.













