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.
