Mortar vs RAL 770-4
Mortar is a Benjamin Moore color while RAL 770-4 comes from RAL Effect. Mortar reads as beige-greige, while RAL 770-4 reads as greige-grey — two distinct hue families, not close cousins. At LRV 23 vs 20, Mortar will read as the brighter of the two — a 3-point gap that matters most in north-facing or low-light rooms. At ΔE 4.4, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Mortar vs RAL 770-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Mortar on one side and RAL 770-4 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 Mortar comparisons
See how Mortar stacks up against other well-photographed colors across different brands and tones.
