Guilford Green vs Ultramarine blue
Guilford Green (Benjamin Moore) and Ultramarine blue (RAL Classic) come from different manufacturers. Hue-wise, Guilford Green belongs to the beige-green family and Ultramarine blue to the blue family. The 50-point LRV gap — 57 for Guilford Green vs 7 for Ultramarine blue — means Guilford Green will open up a space more effectively. A ΔE of 82.8 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Guilford Green vs Ultramarine blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Guilford Green on one side and Ultramarine 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 Guilford Green comparisons
See how Guilford Green stacks up against other well-photographed colors across different brands and tones.







































