Oslo Blue vs River Valley
Oslo Blue is a Behr color while River Valley comes from Dulux. These are both blues, so the question isn't which hue to choose — it's where within blue to land. At LRV 47 vs 44, Oslo Blue will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. The tonal difference — Oslo Blue's blue character against River Valley's cool — becomes most visible against white trim or in morning light. At ΔE 4.4, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Oslo Blue vs River Valley Simulated Comparison
5 simulated room previews — drag the slider on each to see Oslo Blue on one side and River Valley 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 Oslo Blue comparisons
See how Oslo Blue stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 47), opening up a space where Oslo Blue encloses it.
A 5-point LRV gap (52 vs 47) makes Purbeck Stone the marginally brighter of the two.
At LRV 47 vs 30, Oslo Blue is decisively the brighter choice.
At LRV 60 vs 47, Agreeable Gray is decisively the brighter choice.
Accessible Beige reads slightly lighter (LRV 58 vs 47), a gap that shows most in low-lit rooms.
Oslo Blue reflects far more light (LRV 47 vs 27), opening up a space where Denim Drift encloses it.
A 4-point LRV gap (47 vs 43) makes Oslo Blue the marginally brighter of the two.
Tranquil Dawn reads slightly lighter (LRV 55 vs 47), a gap that shows most in low-lit rooms.
Oslo Blue reads slightly lighter (LRV 47 vs 44), a gap that shows most in low-lit rooms.
At LRV 84 vs 47, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 47), opening up a space where Oslo Blue encloses it.
Shoji White reflects far more light (LRV 74 vs 47), opening up a space where Oslo Blue encloses it.
Oslo Blue reflects far more light (LRV 47 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 47), opening up a space where Oslo Blue encloses it.
Oslo Blue reflects far more light (LRV 47 vs 12), opening up a space where Vintage Vogue encloses it.
With LRVs of 47 and 45, the two reflect almost the same amount of light.
At LRV 47 vs 31, Oslo Blue is decisively the brighter choice.
At LRV 47 vs 7, Oslo Blue is decisively the brighter choice.
At LRV 47 vs 24, Oslo Blue is decisively the brighter choice.
A 10-point LRV gap (57 vs 47) makes Guilford Green the marginally brighter of the two.