RAL 620-4 vs Black grey
RAL 620-4 (RAL Effect) and Black grey (RAL Classic) come from different manufacturers. Their light reflectance values are nearly the same — 9 vs 6 — so neither will read significantly brighter or darker than the other. A ΔE of 20.4 puts these firmly in different territory — two distinct design choices rather than close alternatives.
RAL 620-4 vs Black grey Color Comparison
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.
Color Details
RAL 620-4 vs Black grey in Real Spaces
Seeing RAL 620-4 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. Showing 2 room types where both colors have photos.
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. The distinction reads clearly at room scale, making the choice between them concrete.
Plan Home visualization
@dorfstadtvilla
Kitchen Cabinets
Cabinet color is always seen in context — against countertops, backsplash, and hardware — which amplifies undertone differences that might disappear on a plain wall. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Plan Home visualization
@a.jak.agata
More RAL 620-4 comparisons
See how RAL 620-4 stacks up against other well-photographed colors across different brands and tones.

Light vs dark contrast
RAL Effect vs Benjamin Moore

Light vs dark contrast
RAL Effect vs Farrow & Ball

RAL Effect vs Sherwin-Williams
RAL Effect vs Sherwin-Williams

Light vs dark contrast
RAL Effect vs Farrow & Ball

Light vs dark contrast
RAL Effect vs Sherwin-Williams

Light vs dark contrast
RAL Effect vs Farrow & Ball

Light vs dark contrast
RAL Effect vs Sherwin-Williams

Denim Drift reads lighter
RAL Effect vs Dulux

Light vs dark contrast
RAL Effect vs Dulux

Light vs dark contrast
RAL Effect vs Benjamin Moore

RAL Effect vs Benjamin Moore
RAL Effect vs Benjamin Moore

Light vs dark contrast
RAL Effect vs RAL Classic

RAL Effect vs Dulux
RAL Effect vs Dulux

Cement grey reads lighter
RAL Effect vs RAL Classic

Light vs dark contrast
RAL Effect vs Jotun

RAL Effect vs RAL Classic
RAL Effect vs RAL Classic

Light vs dark contrast
RAL Effect vs Little Greene

Light vs dark contrast
RAL Effect vs Jotun

RAL Effect vs Little Greene
RAL Effect vs Little Greene

Light vs dark contrast
RAL Effect vs Jotun

Tea with Florence reads lighter
RAL Effect vs Little Greene

RAL Effect vs Behr
RAL Effect vs Behr

Light vs dark contrast
RAL Effect vs Behr

Light vs dark contrast
RAL Effect vs Behr

Light vs dark contrast
RAL Effect

Light vs dark contrast
RAL Effect

Light vs dark contrast
RAL Effect

RAL Effect vs NCS
RAL Effect vs NCS

Light vs dark contrast
RAL Effect vs NCS

Light vs dark contrast
RAL Effect vs NCS













