RAL 620-4 vs Stiffkey Blue
RAL 620-4 is a RAL Effect color while Stiffkey Blue comes from Farrow & Ball. With LRVs of 9 and 10, they'll behave almost identically in terms of how much light they reflect back into a room. At ΔE 6.1, the difference is perceptible but not dramatic — the two can work harmoniously in the same space.
RAL 620-4 vs Stiffkey Blue 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 Stiffkey Blue in Real Spaces
RAL 620-4 and Stiffkey Blue are close enough that the difference can be hard to judge from a chip alone. These real-room photos show how each reads at scale, across different spaces and lighting conditions. 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. At this scale, the choice between them becomes clear in a way that a swatch alone can't communicate.
Plan Home visualization
@barnesandmoss
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Plan Home visualization
@riverapartment
Kitchen
Kitchen lighting tends to be bright and directional, which sharpens contrast and makes undertone differences more apparent. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Plan Home visualization
@jonospink
Kitchen Cabinets
On cabinetry, undertone and temperature become more pronounced against countertops and hardware. Side by side like this, the difference is easy to read — which is exactly why seeing them in a real space is more useful than comparing chips.
Plan Home visualization
@themiddleterrace
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
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