Signal yellow vs Ultramarine blue
Signal yellow and Ultramarine blue come from the same RAL Classic collection. The 42-point LRV gap — 49 for Signal yellow vs 7 for Ultramarine blue — means Signal yellow will open up a space more effectively. A ΔE of 131.2 puts these firmly in different territory — two distinct design choices rather than close alternatives.
Signal yellow vs Ultramarine 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
More Signal yellow comparisons
See how Signal yellow stacks up against other well-photographed colors across different brands and tones.

Light vs dark contrast
RAL Classic vs Benjamin Moore

Ammonite reads lighter
RAL Classic vs Farrow & Ball

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

Agreeable Gray reads lighter
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
RAL Classic vs Benjamin Moore

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

RAL Classic vs Jotun
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

RAL Classic vs RAL Effect
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









