Oslo Blue vs French Gray
Oslo Blue is a Behr color while French Gray comes from Farrow & Ball. Hue-wise, Oslo Blue belongs to the blue family and French Gray to the beige-greige family. At LRV 47 vs 43, Oslo Blue will read as the brighter of the two — a 4-point gap that matters most in north-facing or low-light rooms. The tonal difference — Oslo Blue's blue character against French Gray's warm — becomes most visible against white trim or in morning light. At ΔE 16.5, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Oslo Blue vs French Gray in Real Spaces
1 real room side by side. Seeing Oslo Blue and French Gray 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
Front doors are seen in isolation against the rest of the facade, which makes them a high-stakes surface where even subtle differences matter. Oslo Blue has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Oslo Blue vs French Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Oslo Blue on one side and French Gray 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.
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.
At LRV 72 vs 47, Just Walnut is decisively the brighter choice.