Celestial Blue vs Festoon Aqua
Celestial Blue (Little Greene) and Festoon Aqua (Sherwin-Williams) come from different manufacturers. Hue-wise, Celestial Blue belongs to the blue-green family and Festoon Aqua to the blue family. Their light reflectance values are nearly the same — 44 vs 46 — so neither will read significantly brighter or darker than the other. Where Celestial Blue leans green, Festoon Aqua reads cool — a distinction that shifts noticeably depending on the light source and surrounding finishes. ΔE 4.1 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Celestial Blue vs Festoon Aqua in Real Spaces
2 real rooms side by side. Celestial Blue 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.
Living Room
A living room wall sees more varied light than almost any other surface in the house, which makes the choice between these two more nuanced than a chip suggests. The distinction reads clearly at room scale, making the choice between them concrete.
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
Celestial Blue vs Festoon Aqua Simulated Comparison
5 simulated room previews — drag the slider on each to see Celestial Blue 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 Celestial Blue comparisons
See how Celestial Blue stacks up against other well-photographed colors across different brands and tones.
