Castle Walls vs Guilford Green
Both are Benjamin Moore colors. Castle Walls reads as green-grey, while Guilford Green reads as beige-green — two distinct hue families, not close cousins. At LRV 57 vs 41, Guilford Green will read as the brighter of the two — a 16-point gap that matters most in north-facing or low-light rooms. The tonal difference — Castle Walls's green character against Guilford Green's yellow — becomes most visible against white trim or in morning light. At ΔE 17.2, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Castle Walls vs Guilford Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Castle Walls on one side and Guilford Green 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 Castle Walls comparisons
See how Castle Walls stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 41, White Dove is decisively the brighter choice.
Ammonite reflects far more light (LRV 69 vs 41), opening up a space where Castle Walls encloses it.
At LRV 41 vs 6, Castle Walls is decisively the brighter choice.
Purbeck Stone reads slightly lighter (LRV 52 vs 41), a gap that shows most in low-lit rooms.
Castle Walls reads slightly lighter (LRV 41 vs 30), a gap that shows most in low-lit rooms.
A 11-point LRV gap (52 vs 41) makes Mizzle the marginally brighter of the two.
Agreeable Gray reflects far more light (LRV 60 vs 41), opening up a space where Castle Walls encloses it.
At LRV 58 vs 41, Accessible Beige is decisively the brighter choice.
At LRV 41 vs 27, Castle Walls is decisively the brighter choice.
With LRVs of 43 and 41, the two reflect almost the same amount of light.
Castle Walls reflects far more light (LRV 41 vs 4), opening up a space where Naval encloses it.
At LRV 55 vs 41, Tranquil Dawn is decisively the brighter choice.
At LRV 41 vs 13, Castle Walls is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 44 vs 41), so neither reads brighter in a room.
Pure White reflects far more light (LRV 84 vs 41), opening up a space where Castle Walls encloses it.
Castle Walls reflects far more light (LRV 41 vs 21), opening up a space where Artichoke encloses it.
At LRV 66 vs 41, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 41, Shoji White is decisively the brighter choice.
At LRV 83 vs 41, Snowbound is decisively the brighter choice.
At LRV 41 vs 12, Castle Walls is decisively the brighter choice.
At LRV 68 vs 41, Skimming Stone is decisively the brighter choice.
With LRVs of 41 and 41, the two reflect almost the same amount of light.
Calamine reflects far more light (LRV 68 vs 41), opening up a space where Castle Walls encloses it.
Castle Walls reflects far more light (LRV 41 vs 25), opening up a space where Treron encloses it.
At LRV 41 vs 12, Castle Walls is decisively the brighter choice.
A 5-point LRV gap (45 vs 41) makes Saybrook Sage the marginally brighter of the two.
Castle Walls reads slightly lighter (LRV 41 vs 31), a gap that shows most in low-lit rooms.
Castle Walls reflects far more light (LRV 41 vs 7), opening up a space where Pine Needle encloses it.
Castle Walls reflects far more light (LRV 41 vs 24), opening up a space where Cement grey encloses it.
Just Walnut reflects far more light (LRV 72 vs 41), opening up a space where Castle Walls encloses it.