Signal yellow vs RAL 180-1
Where Signal yellow belongs to RAL Classic's range, RAL 180-1 is a RAL Effect color. They have nearly identical light reflectance values (49 vs 49), so they'll read as similarly medium in most lighting conditions. With a ΔE of 88.2, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question.
Signal yellow vs RAL 180-1 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
Signal yellow vs RAL 180-1 in Real Spaces
Seeing Signal yellow and RAL 180-1 in actual rooms makes the difference concrete. Browse the spaces below to get a feel for how each color lives on a wall. Showing 3 room types where both colors have photos.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. 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.
@pcaetanocarvalho
Plan Home visualization
Kitchen
In a kitchen, colors are seen under bright task lighting that amplifies undertones — what reads neutral elsewhere can show its hand here. The distinction reads clearly at room scale, making the choice between them concrete.
@bespokeglasssplashback
Plan Home visualization
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. The distinction reads clearly at room scale, making the choice between them concrete.
@gabrielemariapulselli
Plan Home visualization
More Signal yellow comparisons
See how Signal yellow stacks up against other well-photographed colors across different brands and tones.

Light vs dark contrast
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Light vs dark contrast
RAL Classic vs Sherwin-Williams

RAL Classic vs Farrow & Ball
RAL Classic vs Farrow & Ball

Signal yellow reads lighter
RAL Classic vs Sherwin-Williams

RAL Classic vs Farrow & Ball
RAL Classic vs Farrow & Ball

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RAL Classic vs Sherwin-Williams

Light vs dark contrast
RAL Classic vs Dulux

RAL Classic vs Dulux
RAL Classic vs Dulux

Balboa Mist reads lighter
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Light vs dark contrast
RAL Classic vs Benjamin Moore

Signal yellow reads lighter
RAL Classic

Light vs dark contrast
RAL Classic vs Dulux

Light vs dark contrast
RAL Classic

Light vs dark contrast
RAL Classic

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RAL Classic vs Jotun

Signal yellow reads lighter
RAL Classic vs Little Greene

RAL Classic vs Jotun
RAL Classic vs Jotun

Light vs dark contrast
RAL Classic vs Little Greene

RAL Classic vs Jotun
RAL Classic vs Jotun

Light vs dark contrast
RAL Classic vs Little Greene

Light vs dark contrast
RAL Classic vs Behr

RAL Classic vs Behr
RAL Classic vs Behr

Signal yellow reads lighter
RAL Classic vs Behr

Light vs dark contrast
RAL Classic vs RAL Effect

Light vs dark contrast
RAL Classic vs RAL Effect

Light vs dark contrast
RAL Classic vs RAL Effect

Light vs dark contrast
RAL Classic vs NCS

Light vs dark contrast
RAL Classic vs NCS

Light vs dark contrast
RAL Classic vs NCS















