Blue Harmony vs Alley Cat
Blue Harmony (Jotun) and Alley Cat (PPG) come from different manufacturers. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. The 4-point LRV gap — 17 for Blue Harmony vs 13 for Alley Cat — means Blue Harmony will open up a space more effectively. ΔE 3.6 means they're clearly different, but not dramatically so — they'd pair well in the same room. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Blue Harmony vs Alley Cat Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Harmony on one side and Alley Cat 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 Blue Harmony comparisons
See how Blue Harmony stacks up against other well-photographed colors across different brands and tones.
