Steel Symphony 3 vs Grey Blue
Steel Symphony 3 (Dulux) and Grey Blue (RAL Classic) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. The 28-point LRV gap — 35 for Steel Symphony 3 vs 7 for Grey Blue — means Steel Symphony 3 will open up a space more effectively. A ΔE of 32.3 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Steel Symphony 3 vs Grey Blue in Real Spaces
1 real room side by side. Seeing Steel Symphony 3 and Grey Blue in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Front Door
On a front door, the color is both the first and last thing you see — a context where even a modest tonal difference reads clearly. Steel Symphony 3 reflects noticeably more light off the walls, making the space read more open than Grey Blue.
Color Details
Steel Symphony 3 vs Grey Blue Simulated Comparison
5 simulated room previews — drag the slider on each to see Steel Symphony 3 on one side and Grey 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 Steel Symphony 3 comparisons
See how Steel Symphony 3 stacks up against other well-photographed colors across different brands and tones.
