Black Opal vs Steel blue
Black Opal is a Dulux color while Steel blue comes from RAL Classic. These are both blues, so the question isn't which hue to choose — it's where within blue to land. With LRVs of 6 and 5, they'll behave almost identically in terms of how much light they reflect back into a room. At ΔE 5.6, 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
Black Opal vs Steel blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Black Opal on one side and Steel 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 Black Opal comparisons
See how Black Opal stacks up against other well-photographed colors across different brands and tones.







































