Steel Symphony 1 vs Treron
Where Steel Symphony 1 belongs to Dulux's range, Treron is a Farrow & Ball color. Steel Symphony 1 reads as blue-grey, while Treron reads as greige-grey — two distinct hue families, not close cousins. Treron (LRV 25) reflects noticeably more light than Steel Symphony 1 (LRV 17), a difference of 8 points that becomes especially apparent in rooms with limited natural light. Steel Symphony 1 runs cool while Treron is decidedly warm, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 21.2, 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 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Steel Symphony 1 vs Treron in Real Spaces
3 real rooms side by side. Seeing Steel Symphony 1 and Treron in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The brightness difference is modest but present — Treron gives the walls a little more lift.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. Treron reads slightly lighter here — a subtle but real difference in how open the space feels.
Dining Room
A dining room lit by a dimmed pendant or candles is one of the most forgiving environments for paint — warm light softens almost everything. Treron has the edge in reflectance, which shows as a quiet sense of added space rather than an obvious contrast.
Color Details
Steel Symphony 1 vs Treron Simulated Comparison
5 simulated room previews — drag the slider on each to see Steel Symphony 1 on one side and Treron 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 1 comparisons
See how Steel Symphony 1 stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 17), opening up a space where Steel Symphony 1 encloses it.
At LRV 69 vs 17, Ammonite is decisively the brighter choice.
Steel Symphony 1 reads slightly lighter (LRV 17 vs 6), a gap that shows most in low-lit rooms.
At LRV 52 vs 17, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 17, Evergreen Fog is decisively the brighter choice.
Mizzle reflects far more light (LRV 52 vs 17), opening up a space where Steel Symphony 1 encloses it.
At LRV 60 vs 17, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 17), opening up a space where Steel Symphony 1 encloses it.
Denim Drift reads slightly lighter (LRV 27 vs 17), a gap that shows most in low-lit rooms.
At LRV 43 vs 17, French Gray is decisively the brighter choice.
At LRV 17 vs 4, Steel Symphony 1 is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 17), opening up a space where Steel Symphony 1 encloses it.
Steel Symphony 1 reads slightly lighter (LRV 17 vs 13), a gap that shows most in low-lit rooms.
Hardwick White reflects far more light (LRV 44 vs 17), opening up a space where Steel Symphony 1 encloses it.
At LRV 84 vs 17, Pure White is decisively the brighter choice.
A 4-point LRV gap (21 vs 17) makes Artichoke the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 17), opening up a space where Steel Symphony 1 encloses it.
Shoji White reflects far more light (LRV 74 vs 17), opening up a space where Steel Symphony 1 encloses it.
Snowbound reflects far more light (LRV 83 vs 17), opening up a space where Steel Symphony 1 encloses it.
Steel Symphony 1 reads slightly lighter (LRV 17 vs 12), a gap that shows most in low-lit rooms.
Skimming Stone reflects far more light (LRV 68 vs 17), opening up a space where Steel Symphony 1 encloses it.
At LRV 41 vs 17, Dix Blue is decisively the brighter choice.
At LRV 68 vs 17, Calamine is decisively the brighter choice.
Steel Symphony 1 reads slightly lighter (LRV 17 vs 12), a gap that shows most in low-lit rooms.
Saybrook Sage reflects far more light (LRV 45 vs 17), opening up a space where Steel Symphony 1 encloses it.
At LRV 31 vs 17, Pale Green is decisively the brighter choice.
A 10-point LRV gap (17 vs 7) makes Steel Symphony 1 the marginally brighter of the two.
A 7-point LRV gap (24 vs 17) makes Cement grey the marginally brighter of the two.
At LRV 57 vs 17, Guilford Green is decisively the brighter choice.
At LRV 72 vs 17, Just Walnut is decisively the brighter choice.