Celestial Blue vs Light green
Celestial Blue (Little Greene) and Light green (RAL Classic) 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 — 44 vs 44 — so neither will read significantly brighter or darker than the other. A ΔE of 14.2 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Celestial Blue vs Light green in Real Spaces
2 real rooms side by side. Seeing Celestial Blue and Light green in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
House
A full exterior is the most demanding test for a paint color — scale and outdoor light both amplify differences that seem small on a swatch. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
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 Light green Simulated Comparison
5 simulated room previews — drag the slider on each to see Celestial Blue on one side and Light green 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.
