Concrete grey vs White aluminium
Both from RAL Classic's palette. Hue-wise, Concrete grey belongs to the grey family and White aluminium to the grey-white family. White aluminium (LRV 46) reflects noticeably more light than Concrete grey (LRV 23), a difference of 23 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 13.9, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 2 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Concrete grey vs White aluminium in Real Spaces
2 real rooms side by side. Seeing Concrete grey and White aluminium in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. White aluminium reflects noticeably more light off the walls, making the space read more open than Concrete grey.
House
Seen across an entire facade, subtle tonal differences become pronounced. What reads as nearly the same on a chip often reads as clearly different at scale. White aluminium reflects noticeably more light off the walls, making the space read more open than Concrete grey.
Color Details
Concrete grey vs White aluminium Simulated Comparison
5 simulated room previews — drag the slider on each to see Concrete grey on one side and White aluminium 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 Concrete grey comparisons
See how Concrete grey stacks up against other well-photographed colors across different brands and tones.
