Cotton White vs Opaline
Both from Sherwin-Williams's palette. Cotton White reads as beige-white, while Opaline reads as green-grey — two distinct hue families, not close cousins. Cotton White (LRV 87) reflects noticeably more light than Opaline (LRV 73), a difference of 14 points that becomes especially apparent in rooms with limited natural light. Cotton White runs warm while Opaline is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. The ΔE 7.8 gap is real but not dramatic — close enough to use together, distinct enough to matter as a choice. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Cotton White vs Opaline in Real Spaces
1 real room side by side. Cotton White and Opaline are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Cotton White reflects noticeably more light off the walls, making the space read more open than Opaline.
Color Details
Cotton White vs Opaline Simulated Comparison
5 simulated room previews — drag the slider on each to see Cotton White on one side and Opaline 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.