Celestial Blue vs Anthracite grey
Celestial Blue (Little Greene) and Anthracite grey (RAL Classic) come from different manufacturers. Hue-wise, Celestial Blue belongs to the blue-green family and Anthracite grey to the blue-grey family. The 36-point LRV gap — 44 for Celestial Blue vs 8 for Anthracite grey — means Celestial Blue will open up a space more effectively. A ΔE of 47.0 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 Anthracite grey in Real Spaces
2 real rooms side by side. Seeing Celestial Blue and Anthracite grey 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. Celestial Blue returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
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. Celestial Blue reflects noticeably more light off the walls, making the space read more open than Anthracite grey.
Color Details
Celestial Blue vs Anthracite grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Celestial Blue on one side and Anthracite grey 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.
