Smalt vs Signal blue
Smalt is a Little Greene color while Signal blue comes from RAL Classic. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. At LRV 10 vs 6, Signal blue will read as the brighter of the two — a 4-point gap that matters most in north-facing or low-light rooms. At ΔE 9.2, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Smalt vs Signal blue in Real Spaces
1 real room side by side. Smalt and Signal blue are close enough that the difference can be hard to judge from a chip alone — these photos show how each reads at scale, across different spaces and lighting conditions.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The brightness difference is modest but present — Signal blue gives the walls a little more lift.
Color Details
Smalt vs Signal blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Smalt on one side and Signal blue on the other.
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.
More Smalt comparisons
See how Smalt stacks up against other well-photographed colors across different brands and tones.
