Shamrock vs M371
Where Shamrock belongs to Sherwin-Williams's range, M371 is a Tikkurila color. Hue-wise, Shamrock belongs to the green family and M371 to the blue family. They have nearly identical light reflectance values (6 vs 6), so they'll read as similarly Dark in most lighting conditions. With a ΔE of 12.7, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Shamrock vs M371 Simulated Comparison
5 simulated room previews — drag the slider on each to see Shamrock on one side and M371 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 Shamrock comparisons
See how Shamrock stacks up against other well-photographed colors across different brands and tones.








































