Copen Blue vs Holly Glen
Both from Sherwin-Williams's palette. Copen Blue reads as blue-green, while Holly Glen reads as green-grey — two distinct hue families, not close cousins. They have nearly identical light reflectance values (59 vs 57), so they'll read as similarly Light in most lighting conditions. Both lean cool, so they'll behave similarly in mixed or changing light conditions. The ΔE 4.6 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Copen Blue vs Holly Glen Simulated Comparison
5 simulated room previews — drag the slider on each to see Copen Blue on one side and Holly Glen 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 Copen Blue comparisons
See how Copen Blue stacks up against other well-photographed colors across different brands and tones.
