Thunder Clouds vs RAL 830-4
Thunder Clouds is a Dulux color while RAL 830-4 comes from RAL Effect. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. With LRVs of 17 and 16, they'll behave almost identically in terms of how much light they reflect back into a room. At ΔE 3.3, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Thunder Clouds vs RAL 830-4 Simulated Comparison
5 simulated room previews — drag the slider on each to see Thunder Clouds on one side and RAL 830-4 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 Thunder Clouds comparisons
See how Thunder Clouds stacks up against other well-photographed colors across different brands and tones.
