Blue Ground vs Cay
Blue Ground is a Farrow & Ball color while Cay comes from Sherwin-Williams. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. At LRV 58 vs 49, Cay will read as the brighter of the two — a 9-point gap that matters most in north-facing or low-light rooms. They share a cool quality — useful to know if you're layering them in the same space. At ΔE 4.4, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Blue Ground vs Cay in Real Spaces
3 real rooms side by side. Blue Ground and Cay 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. Cay returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Cay will make the room feel meaningfully brighter than Blue Ground would.
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. Cay returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Blue Ground vs Cay Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Ground on one side and Cay 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 Blue Ground comparisons
See how Blue Ground stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 49, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 49), opening up a space where Blue Ground encloses it.
At LRV 49 vs 6, Blue Ground is decisively the brighter choice.
With LRVs of 52 and 49, the two reflect almost the same amount of light.
Blue Ground reflects far more light (LRV 49 vs 30), opening up a space where Evergreen Fog encloses it.
Their light reflectance is nearly identical (LRV 52 vs 49), so neither reads brighter in a room.
Agreeable Gray reads slightly lighter (LRV 60 vs 49), a gap that shows most in low-lit rooms.
A 8-point LRV gap (58 vs 49) makes Accessible Beige the marginally brighter of the two.
At LRV 49 vs 27, Blue Ground is decisively the brighter choice.
Blue Ground reads slightly lighter (LRV 49 vs 43), a gap that shows most in low-lit rooms.
Blue Ground reflects far more light (LRV 49 vs 4), opening up a space where Naval encloses it.
A 6-point LRV gap (55 vs 49) makes Tranquil Dawn the marginally brighter of the two.
At LRV 49 vs 13, Blue Ground is decisively the brighter choice.
A 6-point LRV gap (49 vs 44) makes Blue Ground the marginally brighter of the two.
Pure White reflects far more light (LRV 84 vs 49), opening up a space where Blue Ground encloses it.
Blue Ground reflects far more light (LRV 49 vs 21), opening up a space where Artichoke encloses it.
At LRV 66 vs 49, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 49, Shoji White is decisively the brighter choice.
At LRV 83 vs 49, Snowbound is decisively the brighter choice.
At LRV 49 vs 12, Blue Ground is decisively the brighter choice.
At LRV 68 vs 49, Skimming Stone is decisively the brighter choice.
Blue Ground reads slightly lighter (LRV 49 vs 41), a gap that shows most in low-lit rooms.
Calamine reflects far more light (LRV 68 vs 49), opening up a space where Blue Ground encloses it.
Blue Ground reflects far more light (LRV 49 vs 25), opening up a space where Treron encloses it.
At LRV 49 vs 12, Blue Ground is decisively the brighter choice.
A 4-point LRV gap (49 vs 45) makes Blue Ground the marginally brighter of the two.
Blue Ground reflects far more light (LRV 49 vs 31), opening up a space where Pale Green encloses it.
Blue Ground reflects far more light (LRV 49 vs 7), opening up a space where Pine Needle encloses it.
Blue Ground reflects far more light (LRV 49 vs 24), opening up a space where Cement grey encloses it.
Guilford Green reads slightly lighter (LRV 57 vs 49), a gap that shows most in low-lit rooms.