Opal Silk vs Festoon Aqua
Where Opal Silk belongs to Behr's range, Festoon Aqua is a Sherwin-Williams color. Hue-wise, Opal Silk belongs to the blue-green family and Festoon Aqua to the blue family. Festoon Aqua (LRV 46) reflects noticeably more light than Opal Silk (LRV 43), a difference of 3 points that becomes especially apparent in rooms with limited natural light. Opal Silk runs green while Festoon Aqua is decidedly cool, which means they'll respond very differently to warm vs cool light sources. At ΔE 2.4, these are close — the kind of difference that matters when choosing between them, but doesn't read strongly in a finished 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 Festoon Aqua in Real Spaces
1 real room side by side. Opal Silk and Festoon Aqua 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
A front door is a focal point — small color differences read clearly at this concentrated scale. The brightness difference is modest but present — Festoon Aqua gives the walls a little more lift.
Color Details
Opal Silk vs Festoon Aqua Simulated Comparison
5 simulated room previews — drag the slider on each to see Opal Silk on one side and Festoon Aqua 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.
White Dove reflects far more light (LRV 83 vs 43), opening up a space where Opal Silk encloses it.
A 8-point LRV gap (52 vs 43) makes Purbeck Stone the marginally brighter of the two.
At LRV 43 vs 30, Opal Silk is decisively the brighter choice.
At LRV 60 vs 43, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 43), opening up a space where Opal Silk encloses it.
Opal Silk reflects far more light (LRV 43 vs 27), opening up a space where Denim Drift encloses it.
Their light reflectance is nearly identical (LRV 43 vs 43), so neither reads brighter in a room.
Tranquil Dawn reads slightly lighter (LRV 55 vs 43), a gap that shows most in low-lit rooms.
With LRVs of 44 and 43, the two reflect almost the same amount of light.
At LRV 84 vs 43, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 43), opening up a space where Opal Silk encloses it.
Shoji White reflects far more light (LRV 74 vs 43), opening up a space where Opal Silk encloses it.
Opal Silk reflects far more light (LRV 43 vs 12), opening up a space where Pewter Green encloses it.
Opal Silk reflects far more light (LRV 43 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 43), opening up a space where Opal Silk encloses it.
Opal Silk reflects far more light (LRV 43 vs 12), opening up a space where Vintage Vogue encloses it.
With LRVs of 45 and 43, the two reflect almost the same amount of light.
At LRV 43 vs 31, Opal Silk is decisively the brighter choice.