Granite Boulder vs Blue Gray
Granite Boulder is a Behr color while Blue Gray comes from Farrow & Ball. Hue-wise, Granite Boulder belongs to the greige-grey family and Blue Gray to the blue-greige family. With LRVs of 42 and 45, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — Granite Boulder's yellow character against Blue Gray's warm — becomes most visible against white trim or in morning light. At ΔE 3.4, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Granite Boulder vs Blue Gray in Real Spaces
2 real rooms side by side. Granite Boulder and Blue Gray are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Color Details
Granite Boulder vs Blue Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Granite Boulder on one side and Blue 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 Granite Boulder comparisons
See how Granite Boulder stacks up against other well-photographed colors across different brands and tones.
