Lagoon vs River Rouge
Lagoon and River Rouge come from the same Sherwin-Williams collection. Lagoon reads as blue, while River Rouge reads as grey — two distinct hue families, not close cousins. The 9-point LRV gap — 20 for Lagoon vs 12 for River Rouge — means Lagoon will open up a space more effectively. Where Lagoon leans cool, River Rouge reads warm — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 33.7 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
Lagoon vs River Rouge Simulated Comparison
5 simulated room previews — drag the slider on each to see Lagoon on one side and River Rouge 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 Lagoon comparisons
See how Lagoon stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 20, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 20), opening up a space where Lagoon encloses it.
Evergreen Fog reads slightly lighter (LRV 30 vs 20), a gap that shows most in low-lit rooms.
Agreeable Gray reflects far more light (LRV 60 vs 20), opening up a space where Lagoon encloses it.
At LRV 58 vs 20, Accessible Beige is decisively the brighter choice.
A 7-point LRV gap (27 vs 20) makes Denim Drift the marginally brighter of the two.
French Gray reflects far more light (LRV 43 vs 20), opening up a space where Lagoon encloses it.
At LRV 55 vs 20, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 20, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 20), opening up a space where Lagoon encloses it.
At LRV 66 vs 20, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 20, Shoji White is decisively the brighter choice.
A 8-point LRV gap (20 vs 12) makes Lagoon the marginally brighter of the two.
At LRV 20 vs 8, Lagoon is decisively the brighter choice.
At LRV 68 vs 20, Skimming Stone is decisively the brighter choice.
A 8-point LRV gap (20 vs 12) makes Lagoon the marginally brighter of the two.
At LRV 45 vs 20, Saybrook Sage is decisively the brighter choice.
Pale Green reads slightly lighter (LRV 31 vs 20), a gap that shows most in low-lit rooms.