Cement grey vs RAL 620-3
Cement grey is a RAL Classic color while RAL 620-3 comes from RAL Effect. Hue-wise, Cement grey belongs to the grey family and RAL 620-3 to the blue family. At LRV 24 vs 20, Cement grey will read as the brighter of the two — a 5-point gap that matters most in north-facing or low-light rooms. At ΔE 18.4, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Cement grey vs RAL 620-3 in Real Spaces
3 real rooms side by side. Seeing Cement grey and RAL 620-3 in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The brightness difference is modest but present — Cement grey gives the walls a little more lift.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The brightness difference is modest but present — Cement grey gives the walls a little more lift.
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The brightness difference is modest but present — Cement grey gives the walls a little more lift.
Color Details
Cement grey vs RAL 620-3 Simulated Comparison
5 simulated room previews — drag the slider on each to see Cement grey on one side and RAL 620-3 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 Cement grey comparisons
See how Cement grey stacks up against other well-photographed colors across different brands and tones.














































