Ionian vs Lagoon
Both are Sherwin-Williams colors. These are both blues, so the question isn't which hue to choose — it's where within blue to land. With LRVs of 20 and 20, they'll behave almost identically in terms of how much light they reflect back into a room. They share a cool quality — useful to know if you're layering them in the same space. At ΔE 12.9, 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
Ionian vs Lagoon Simulated Comparison
5 simulated room previews — drag the slider on each to see Ionian on one side and Lagoon 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 Ionian comparisons
See how Ionian stacks up against other well-photographed colors across different brands and tones.
