Mortar vs Oystershell
Where Mortar belongs to Behr's range, Oystershell is a Benjamin Moore color. Hue-wise, Mortar belongs to the grey family and Oystershell to the green-grey family. They have nearly identical light reflectance values (67 vs 68), so they'll read as similarly Light in most lighting conditions. Mortar runs yellow while Oystershell is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. At ΔE 1.5, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished room. 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 Oystershell Simulated Comparison
5 simulated room previews — drag the slider on each to see Mortar on one side and Oystershell 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.
