Opal Silk vs Celestial Blue
Opal Silk (Behr) and Celestial Blue (Little Greene) come from different manufacturers. Both sit in the blue-green family, which is useful context if you're narrowing within a single hue direction. Their light reflectance values are nearly the same — 43 vs 44 — so neither will read significantly brighter or darker than the other. Both share a green character, which means they'll respond to light and surrounding materials in similar ways. ΔE 4.0 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Opal Silk vs Celestial Blue in Real Spaces
1 real room side by side. Opal Silk and Celestial Blue 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.
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. The distinction reads clearly at room scale, making the choice between them concrete.
Color Details
Opal Silk vs Celestial Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Opal Silk on one side and Celestial Blue 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 Opal Silk comparisons
See how Opal Silk stacks up against other well-photographed colors across different brands and tones.
