Resonant Blue vs L366
Resonant Blue is a Sherwin-Williams color while L366 comes from Tikkurila. These are both blues, so the question isn't which hue to choose — it's where within blue to land. At LRV 30 vs 15, Resonant Blue will read as the brighter of the two — a 14-point gap that matters most in north-facing or low-light rooms. At ΔE 18.5, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Resonant Blue vs L366 Simulated Comparison
5 simulated room previews — drag the slider on each to see Resonant Blue on one side and L366 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 Resonant Blue comparisons
See how Resonant Blue stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 30), opening up a space where Resonant Blue encloses it.
At LRV 69 vs 30, Ammonite is decisively the brighter choice.
Resonant Blue reflects far more light (LRV 30 vs 6), opening up a space where Iron Ore encloses it.
At LRV 52 vs 30, Purbeck Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 30 vs 30), so neither reads brighter in a room.
Mizzle reflects far more light (LRV 52 vs 30), opening up a space where Resonant Blue encloses it.
At LRV 60 vs 30, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 30), opening up a space where Resonant Blue encloses it.
With LRVs of 30 and 27, the two reflect almost the same amount of light.
At LRV 43 vs 30, French Gray is decisively the brighter choice.
At LRV 30 vs 4, Resonant Blue is decisively the brighter choice.
Tranquil Dawn reflects far more light (LRV 55 vs 30), opening up a space where Resonant Blue encloses it.
Resonant Blue reflects far more light (LRV 30 vs 13), opening up a space where Bancha encloses it.
Hardwick White reflects far more light (LRV 44 vs 30), opening up a space where Resonant Blue encloses it.
At LRV 84 vs 30, Pure White is decisively the brighter choice.
A 8-point LRV gap (30 vs 21) makes Resonant Blue the marginally brighter of the two.
Balboa Mist reflects far more light (LRV 66 vs 30), opening up a space where Resonant Blue encloses it.
Shoji White reflects far more light (LRV 74 vs 30), opening up a space where Resonant Blue encloses it.
Snowbound reflects far more light (LRV 83 vs 30), opening up a space where Resonant Blue encloses it.
Resonant Blue reflects far more light (LRV 30 vs 12), opening up a space where Pewter Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 30), opening up a space where Resonant Blue encloses it.
A 11-point LRV gap (41 vs 30) makes Dix Blue the marginally brighter of the two.
At LRV 68 vs 30, Calamine is decisively the brighter choice.
A 5-point LRV gap (30 vs 25) makes Resonant Blue the marginally brighter of the two.
Resonant Blue reflects far more light (LRV 30 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reflects far more light (LRV 45 vs 30), opening up a space where Resonant Blue encloses it.
Their light reflectance is nearly identical (LRV 31 vs 30), so neither reads brighter in a room.
At LRV 30 vs 7, Resonant Blue is decisively the brighter choice.
A 5-point LRV gap (30 vs 24) makes Resonant Blue the marginally brighter of the two.
At LRV 57 vs 30, Guilford Green is decisively the brighter choice.