Celestial Blue vs Slaked Lime - Dark
Celestial Blue and Slaked Lime - Dark come from the same Little Greene collection. Hue-wise, Celestial Blue belongs to the blue-green family and Slaked Lime - Dark to the beige-greige family. Their light reflectance values are nearly the same — 44 vs 45 — so neither will read significantly brighter or darker than the other. Where Celestial Blue leans green, Slaked Lime - Dark reads red — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 14.5 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Celestial Blue vs Slaked Lime - Dark in Real Spaces
3 real rooms side by side. Seeing Celestial Blue and Slaked Lime - Dark in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
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. Slaked Lime - Dark brings more warmth to the space, while Celestial Blue keeps things cooler and crisper.
Bedroom
Bedrooms are typically lit with warmer, lower light than the rest of the house — a condition that flatters warm tones and deepens cool ones. Celestial Blue reads more restrained here, while Slaked Lime - Dark adds a sense of enclosure and warmth.
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. Slaked Lime - Dark brings more warmth to the space, while Celestial Blue keeps things cooler and crisper.
Color Details
Celestial Blue vs Slaked Lime - Dark Simulated Comparison
5 simulated room previews — drag the slider on each to see Celestial Blue on one side and Slaked Lime - Dark 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.














































