Opera Glass vs Undercool
Opera Glass and Undercool come from the same Sherwin-Williams collection. Opera Glass reads as green, while Undercool reads as blue — two distinct hue families, not close cousins. The 37-point LRV gap — 86 for Opera Glass vs 49 for Undercool — means Opera Glass will open up a space more effectively. Both share a cool character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 31.0 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Opera Glass vs Undercool Simulated Comparison
5 simulated room previews — drag the slider on each to see Opera Glass on one side and Undercool 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 Opera Glass comparisons
See how Opera Glass stacks up against other well-photographed colors across different brands and tones.
