Steel Symphony 3 vs Duck Green
Where Steel Symphony 3 belongs to Dulux's range, Duck Green is a Farrow & Ball color. Steel Symphony 3 reads as blue-grey, while Duck Green reads as green-grey — two distinct hue families, not close cousins. Steel Symphony 3 (LRV 35) reflects noticeably more light than Duck Green (LRV 8), a difference of 27 points that becomes especially apparent in rooms with limited natural light. Steel Symphony 3 runs cool while Duck Green is decidedly neutral, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 34.2, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. 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 Duck Green in Real Spaces
1 real room side by side. Seeing Steel Symphony 3 and Duck Green 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
A front door is a focal point — small color differences read clearly at this concentrated scale. The LRV gap is large enough that Steel Symphony 3 will make the room feel meaningfully brighter than Duck Green would.
Color Details
Steel Symphony 3 vs Duck Green Simulated Comparison
5 simulated room previews — drag the slider on each to see Steel Symphony 3 on one side and Duck Green 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.
At LRV 69 vs 35, Ammonite is decisively the brighter choice.
White Dove reflects far more light (LRV 83 vs 35), opening up a space where Steel Symphony 3 encloses it.
Steel Symphony 3 reflects far more light (LRV 35 vs 6), opening up a space where Iron Ore encloses it.
At LRV 52 vs 35, Purbeck Stone is decisively the brighter choice.
A 5-point LRV gap (35 vs 30) makes Steel Symphony 3 the marginally brighter of the two.
Mizzle reflects far more light (LRV 52 vs 35), opening up a space where Steel Symphony 3 encloses it.
At LRV 60 vs 35, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 35), opening up a space where Steel Symphony 3 encloses it.
Steel Symphony 3 reads slightly lighter (LRV 35 vs 27), a gap that shows most in low-lit rooms.
A 8-point LRV gap (43 vs 35) makes French Gray the marginally brighter of the two.
At LRV 35 vs 4, Steel Symphony 3 is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 35), opening up a space where Steel Symphony 3 encloses it.
Steel Symphony 3 reflects far more light (LRV 35 vs 13), opening up a space where Bancha encloses it.
Hardwick White reads slightly lighter (LRV 44 vs 35), a gap that shows most in low-lit rooms.
At LRV 84 vs 35, Pure White is decisively the brighter choice.
At LRV 35 vs 21, Steel Symphony 3 is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 35), opening up a space where Steel Symphony 3 encloses it.
Shoji White reflects far more light (LRV 74 vs 35), opening up a space where Steel Symphony 3 encloses it.
Snowbound reflects far more light (LRV 83 vs 35), opening up a space where Steel Symphony 3 encloses it.
At LRV 51 vs 35, Pigeon is decisively the brighter choice.
Steel Symphony 3 reflects far more light (LRV 35 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 35), opening up a space where Steel Symphony 3 encloses it.
A 6-point LRV gap (41 vs 35) makes Dix Blue the marginally brighter of the two.
Steel Symphony 3 reflects far more light (LRV 35 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reads slightly lighter (LRV 45 vs 35), a gap that shows most in low-lit rooms.
A 4-point LRV gap (35 vs 31) makes Steel Symphony 3 the marginally brighter of the two.
At LRV 35 vs 7, Steel Symphony 3 is decisively the brighter choice.