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.










































