Steel Symphony 4 vs S 2005-G10Y
Steel Symphony 4 is a Dulux color while S 2005-G10Y comes from NCS. Steel Symphony 4 reads as blue-grey, while S 2005-G10Y reads as green-grey — two distinct hue families, not close cousins. With LRVs of 54 and 53, they'll behave almost identically in terms of how much light they reflect back into a room. The tonal difference — Steel Symphony 4's cool character against S 2005-G10Y's neutral — becomes most visible against white trim or in morning light. At ΔE 7.1, 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
Steel Symphony 4 vs S 2005-G10Y Simulated Comparison
5 simulated room previews — drag the slider on each to see Steel Symphony 4 on one side and S 2005-G10Y 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 4 comparisons
See how Steel Symphony 4 stacks up against other well-photographed colors across different brands and tones.
Ammonite reflects far more light (LRV 69 vs 54), opening up a space where Steel Symphony 4 encloses it.
At LRV 83 vs 54, White Dove is decisively the brighter choice.
At LRV 54 vs 6, Steel Symphony 4 is decisively the brighter choice.
With LRVs of 54 and 52, the two reflect almost the same amount of light.
Steel Symphony 4 reflects far more light (LRV 54 vs 30), opening up a space where Evergreen Fog encloses it.
Their light reflectance is nearly identical (LRV 54 vs 52), so neither reads brighter in a room.
Agreeable Gray reads slightly lighter (LRV 60 vs 54), a gap that shows most in low-lit rooms.
A 4-point LRV gap (58 vs 54) makes Accessible Beige the marginally brighter of the two.
At LRV 54 vs 27, Steel Symphony 4 is decisively the brighter choice.
Steel Symphony 4 reads slightly lighter (LRV 54 vs 43), a gap that shows most in low-lit rooms.
Steel Symphony 4 reflects far more light (LRV 54 vs 4), opening up a space where Naval encloses it.
Their light reflectance is nearly identical (LRV 55 vs 54), so neither reads brighter in a room.
At LRV 54 vs 13, Steel Symphony 4 is decisively the brighter choice.
A 10-point LRV gap (54 vs 44) makes Steel Symphony 4 the marginally brighter of the two.
Pure White reflects far more light (LRV 84 vs 54), opening up a space where Steel Symphony 4 encloses it.
Steel Symphony 4 reflects far more light (LRV 54 vs 21), opening up a space where Artichoke encloses it.
A 12-point LRV gap (66 vs 54) makes Balboa Mist the marginally brighter of the two.
At LRV 74 vs 54, Shoji White is decisively the brighter choice.
At LRV 83 vs 54, Snowbound is decisively the brighter choice.
Steel Symphony 4 reads slightly lighter (LRV 54 vs 51), a gap that shows most in low-lit rooms.
At LRV 54 vs 12, Steel Symphony 4 is decisively the brighter choice.
At LRV 54 vs 8, Steel Symphony 4 is decisively the brighter choice.
At LRV 68 vs 54, Skimming Stone is decisively the brighter choice.
Steel Symphony 4 reflects far more light (LRV 54 vs 41), opening up a space where Dix Blue encloses it.
At LRV 54 vs 12, Steel Symphony 4 is decisively the brighter choice.
A 9-point LRV gap (54 vs 45) makes Steel Symphony 4 the marginally brighter of the two.
Steel Symphony 4 reflects far more light (LRV 54 vs 31), opening up a space where Pale Green encloses it.