Beacon Blue vs Cook's Blue
Beacon Blue (Behr) and Cook's Blue (Farrow & Ball) come from different manufacturers. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. The 16-point LRV gap — 25 for Cook's Blue vs 9 for Beacon Blue — means Cook's Blue will open up a space more effectively. Where Beacon Blue leans blue, Cook's Blue reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 26.0 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Beacon Blue vs Cook's Blue in Real Spaces
4 real rooms side by side. Seeing Beacon Blue and Cook's Blue in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. Cook's Blue reflects noticeably more light off the walls, making the space read more open than Beacon Blue.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Cook's Blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. Cook's Blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. Cook's Blue reflects noticeably more light off the walls, making the space read more open than Beacon Blue.
Color Details
Beacon Blue vs Cook's Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Beacon Blue on one side and Cook's Blue 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 Beacon Blue comparisons
See how Beacon Blue stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 9, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 9), opening up a space where Beacon Blue encloses it.
A 3-point LRV gap (9 vs 6) makes Beacon Blue the marginally brighter of the two.
Purbeck Stone reflects far more light (LRV 52 vs 9), opening up a space where Beacon Blue encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 9), opening up a space where Beacon Blue encloses it.
At LRV 52 vs 9, Mizzle is decisively the brighter choice.
Agreeable Gray reflects far more light (LRV 60 vs 9), opening up a space where Beacon Blue encloses it.
At LRV 58 vs 9, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 9, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 9), opening up a space where Beacon Blue encloses it.
Beacon Blue reads slightly lighter (LRV 9 vs 4), a gap that shows most in low-lit rooms.
At LRV 55 vs 9, Tranquil Dawn is decisively the brighter choice.
A 4-point LRV gap (13 vs 9) makes Bancha the marginally brighter of the two.
At LRV 44 vs 9, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 9), opening up a space where Beacon Blue encloses it.
Artichoke reflects far more light (LRV 21 vs 9), opening up a space where Beacon Blue encloses it.
At LRV 66 vs 9, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 9, Shoji White is decisively the brighter choice.
At LRV 83 vs 9, Snowbound is decisively the brighter choice.
A 3-point LRV gap (12 vs 9) makes Pewter Green the marginally brighter of the two.
At LRV 68 vs 9, Skimming Stone is decisively the brighter choice.
Dix Blue reflects far more light (LRV 41 vs 9), opening up a space where Beacon Blue encloses it.
Calamine reflects far more light (LRV 68 vs 9), opening up a space where Beacon Blue encloses it.
Treron reflects far more light (LRV 25 vs 9), opening up a space where Beacon Blue encloses it.
A 3-point LRV gap (12 vs 9) makes Vintage Vogue the marginally brighter of the two.
At LRV 45 vs 9, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 9), opening up a space where Beacon Blue encloses it.
With LRVs of 9 and 7, the two reflect almost the same amount of light.
Cement grey reflects far more light (LRV 24 vs 9), opening up a space where Beacon Blue encloses it.
Guilford Green reflects far more light (LRV 57 vs 9), opening up a space where Beacon Blue encloses it.