Subzero Blue vs Izmir Purple
Subzero Blue (Dulux) and Izmir Purple (Sherwin-Williams) come from different manufacturers. Hue-wise, Subzero Blue belongs to the blue family and Izmir Purple to the blue-purple family. Their light reflectance values are nearly the same — 8 vs 7 — so neither will read significantly brighter or darker than the other. Both share a cool character, which means they'll respond to light and surrounding materials in similar ways. A ΔE of 13.8 puts these firmly in different territory — two distinct design choices rather than close alternatives. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Subzero Blue vs Izmir Purple Simulated Comparison
5 simulated room previews — drag the slider on each to see Subzero Blue on one side and Izmir Purple 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 Subzero Blue comparisons
See how Subzero Blue stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 8), opening up a space where Subzero Blue encloses it.
At LRV 69 vs 8, Ammonite is decisively the brighter choice.
With LRVs of 8 and 6, the two reflect almost the same amount of light.
At LRV 52 vs 8, Purbeck Stone is decisively the brighter choice.
At LRV 30 vs 8, Evergreen Fog is decisively the brighter choice.
Mizzle reflects far more light (LRV 52 vs 8), opening up a space where Subzero Blue encloses it.
At LRV 60 vs 8, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 8), opening up a space where Subzero Blue encloses it.
Denim Drift reflects far more light (LRV 27 vs 8), opening up a space where Subzero Blue encloses it.
At LRV 43 vs 8, French Gray is decisively the brighter choice.
A 4-point LRV gap (8 vs 4) makes Subzero Blue the marginally brighter of the two.
Tranquil Dawn reflects far more light (LRV 55 vs 8), opening up a space where Subzero Blue encloses it.
Bancha reads slightly lighter (LRV 13 vs 8), a gap that shows most in low-lit rooms.
Hardwick White reflects far more light (LRV 44 vs 8), opening up a space where Subzero Blue encloses it.
At LRV 84 vs 8, Pure White is decisively the brighter choice.
At LRV 21 vs 8, Artichoke is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 8), opening up a space where Subzero Blue encloses it.
Shoji White reflects far more light (LRV 74 vs 8), opening up a space where Subzero Blue encloses it.
Snowbound reflects far more light (LRV 83 vs 8), opening up a space where Subzero Blue encloses it.
Pewter Green reads slightly lighter (LRV 12 vs 8), a gap that shows most in low-lit rooms.
Skimming Stone reflects far more light (LRV 68 vs 8), opening up a space where Subzero Blue encloses it.
At LRV 41 vs 8, Dix Blue is decisively the brighter choice.
At LRV 68 vs 8, Calamine is decisively the brighter choice.
At LRV 25 vs 8, Treron is decisively the brighter choice.
Vintage Vogue reads slightly lighter (LRV 12 vs 8), a gap that shows most in low-lit rooms.
Saybrook Sage reflects far more light (LRV 45 vs 8), opening up a space where Subzero Blue encloses it.
At LRV 31 vs 8, Pale Green is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 8 vs 7), so neither reads brighter in a room.
At LRV 24 vs 8, Cement grey is decisively the brighter choice.
At LRV 57 vs 8, Guilford Green is decisively the brighter choice.