Natural Blue vs Black grey
Natural Blue (Jotun) and Black grey (RAL Classic) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. The 23-point LRV gap — 29 for Natural Blue vs 6 for Black grey — means Natural Blue will open up a space more effectively. A ΔE of 40.4 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Natural Blue vs Black grey in Real Spaces
1 real room side by side. Seeing Natural Blue and Black grey 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. Natural Blue reflects noticeably more light off the walls, making the space read more open than Black grey.
Color Details
Natural Blue vs Black grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Natural Blue on one side and Black 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 Natural Blue comparisons
See how Natural Blue stacks up against other well-photographed colors across different brands and tones.
