Aquarium vs L366
Where Aquarium belongs to Sherwin-Williams's range, L366 is a Tikkurila color. Both sit in the blue family, which is useful context if you're narrowing within a single hue direction. Aquarium (LRV 32) reflects noticeably more light than L366 (LRV 15), a difference of 17 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 11.8, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Aquarium vs L366 Simulated Comparison
5 simulated room previews — drag the slider on each to see Aquarium 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 Aquarium comparisons
See how Aquarium stacks up against other well-photographed colors across different brands and tones.
White Dove reflects far more light (LRV 83 vs 32), opening up a space where Aquarium encloses it.
At LRV 52 vs 32, Purbeck Stone is decisively the brighter choice.
Their light reflectance is nearly identical (LRV 32 vs 30), so neither reads brighter in a room.
At LRV 60 vs 32, Agreeable Gray is decisively the brighter choice.
Accessible Beige reflects far more light (LRV 58 vs 32), opening up a space where Aquarium encloses it.
Aquarium reads slightly lighter (LRV 32 vs 27), a gap that shows most in low-lit rooms.
A 11-point LRV gap (43 vs 32) makes French Gray the marginally brighter of the two.
Tranquil Dawn reflects far more light (LRV 55 vs 32), opening up a space where Aquarium encloses it.
Hardwick White reads slightly lighter (LRV 44 vs 32), a gap that shows most in low-lit rooms.
At LRV 84 vs 32, Pure White is decisively the brighter choice.
Balboa Mist reflects far more light (LRV 66 vs 32), opening up a space where Aquarium encloses it.
Shoji White reflects far more light (LRV 74 vs 32), opening up a space where Aquarium encloses it.
Aquarium reflects far more light (LRV 32 vs 12), opening up a space where Pewter Green encloses it.
Aquarium reflects far more light (LRV 32 vs 8), opening up a space where Duck Green encloses it.
Skimming Stone reflects far more light (LRV 68 vs 32), opening up a space where Aquarium encloses it.
Aquarium reflects far more light (LRV 32 vs 12), opening up a space where Vintage Vogue encloses it.
Saybrook Sage reflects far more light (LRV 45 vs 32), opening up a space where Aquarium encloses it.
Their light reflectance is nearly identical (LRV 32 vs 31), so neither reads brighter in a room.