RAL 620-4 vs Lamp Black
RAL 620-4 is a RAL Effect color while Lamp Black comes from Little Greene. At LRV 9 vs 3, RAL 620-4 will read as the brighter of the two — a 6-point gap that matters most in north-facing or low-light rooms. At ΔE 23.0, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions.
RAL 620-4 vs Lamp Black 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 Lamp Black in Real Spaces
Seeing RAL 620-4 and Lamp Black in actual rooms makes the difference concrete. Browse the spaces below to get a feel for how each color lives on a wall. Showing 4 room types where both colors have photos.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. RAL 620-4 has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Plan Home visualization
@bytherowantrees_
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 — RAL 620-4 gives the walls a little more lift.
Plan Home visualization
@visitnumber7
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. The brightness difference is modest but present — RAL 620-4 gives the walls a little more lift.
Plan Home visualization
@lc_painting
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. The brightness difference is modest but present — RAL 620-4 gives the walls a little more lift.
Plan Home visualization
@gracofurnitureltd
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

RAL Effect vs RAL Classic
RAL Effect vs RAL Classic

Light vs dark contrast
RAL Effect vs Jotun

Light vs dark contrast
RAL Effect vs Little Greene

Light vs dark contrast
RAL Effect vs Jotun

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

RAL Effect vs Little Greene
RAL Effect vs Little Greene

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

















