Celestial Blue vs RAL 190-6
Celestial Blue (Little Greene) and RAL 190-6 (RAL Effect) come from different manufacturers. Hue-wise, Celestial Blue belongs to the blue-green family and RAL 190-6 to the blue family. The 4-point LRV gap — 48 for RAL 190-6 vs 44 for Celestial Blue — means RAL 190-6 will open up a space more effectively. ΔE 6.1 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 RAL 190-6 in Real Spaces
2 real rooms side by side. Celestial Blue and RAL 190-6 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. RAL 190-6 reads slightly lighter here — a subtle but real difference in how open the space feels.
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. RAL 190-6 has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Celestial Blue vs RAL 190-6 Simulated Comparison
5 simulated room previews — drag the slider on each to see Celestial Blue on one side and RAL 190-6 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.
