Imperial Gray vs Celestial Blue
Imperial Gray (Benjamin Moore) and Celestial Blue (Little Greene) come from different manufacturers. Hue-wise, Imperial Gray belongs to the green-grey family and Celestial Blue to the blue-green family. The 3-point LRV gap — 47 for Imperial Gray vs 44 for Celestial Blue — means Imperial Gray will open up a space more effectively. Both share a green character, which means they'll respond to light and surrounding materials in similar ways. ΔE 3.6 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.
Imperial Gray vs Celestial Blue in Real Spaces
1 real room side by side. Imperial Gray 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.
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. Imperial Gray reads more restrained here, while Celestial Blue adds a sense of enclosure and warmth.
Color Details
Imperial Gray vs Celestial Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Imperial Gray 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 Imperial Gray comparisons
See how Imperial Gray stacks up against other well-photographed colors across different brands and tones.










































