Perennial Green vs Shamrock
Both from Sherwin-Williams's palette. These are both greens, so the question isn't which hue to choose — it's where within green to land. Shamrock (LRV 6) reflects noticeably more light than Perennial Green (LRV NaN), a difference of NaN points that becomes especially apparent in rooms with limited natural light. Both lean cool, so they'll behave similarly in mixed or changing light conditions. With a ΔE of NaN, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Perennial Green vs Shamrock in Real Spaces
2 real rooms side by side. Seeing Perennial Green and Shamrock in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Perennial Green vs Shamrock Simulated Comparison
5 simulated room previews — drag the slider on each to see Perennial Green on one side and Shamrock 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 Perennial Green comparisons
See how Perennial Green stacks up against other well-photographed colors across different brands and tones.
