Oslo Blue vs Duck Green
Where Oslo Blue belongs to Behr's range, Duck Green is a Farrow & Ball color. Oslo Blue reads as blue, while Duck Green reads as green-grey — two distinct hue families, not close cousins. Oslo Blue (LRV 47) reflects noticeably more light than Duck Green (LRV 8), a difference of 39 points that becomes especially apparent in rooms with limited natural light. Oslo Blue runs blue while Duck Green is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 42.5, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Oslo Blue vs Duck Green in Real Spaces
1 real room side by side. Seeing Oslo Blue and Duck Green in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Front Door
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Oslo Blue will make the room feel meaningfully brighter than Duck Green would.
Color Details
Oslo Blue vs Duck Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Oslo Blue on one side and Duck 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 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.