Blue Harmony vs K431
Blue Harmony (Jotun) and K431 (Tikkurila) come from different manufacturers. Blue Harmony reads as blue-grey, while K431 reads as blue — two distinct hue families, not close cousins. Their light reflectance values are nearly the same — 17 vs 18 — so neither will read significantly brighter or darker than the other. A ΔE of 14.2 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
Blue Harmony vs K431 Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Harmony on one side and K431 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.
