Old Mill Blue vs Amethyst
Old Mill Blue is a PPG color while Amethyst comes from Tikkurila. These are both blue-greys, so the question isn't which hue to choose — it's where within blue-grey to land. At LRV 17 vs 13, Old Mill Blue will read as the brighter of the two — a 4-point gap that matters most in north-facing or low-light rooms. At ΔE 5.6, the difference is perceptible but not dramatic — the two can work harmoniously in the same space. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Old Mill Blue vs Amethyst Simulated Comparison
5 simulated room previews — drag the slider on each to see Old Mill Blue on one side and Amethyst 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 Old Mill Blue comparisons
See how Old Mill Blue stacks up against other well-photographed colors across different brands and tones.
