Old Mill Blue vs Agreeable Gray
Old Mill Blue (PPG) and Agreeable Gray (Sherwin-Williams) come from different manufacturers. Old Mill Blue reads as blue-grey, while Agreeable Gray reads as greige-grey — two distinct hue families, not close cousins. The 43-point LRV gap — 60 for Agreeable Gray vs 17 for Old Mill Blue — means Agreeable Gray will open up a space more effectively. A ΔE of 38.3 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
Old Mill Blue vs Agreeable Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Old Mill Blue on one side and Agreeable Gray 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.
