Iris Bliss vs Millstone Gray
Iris Bliss and Millstone Gray come from the same Benjamin Moore collection. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. The 17-point LRV gap — 34 for Iris Bliss vs 17 for Millstone Gray — means Iris Bliss will open up a space more effectively. Where Iris Bliss leans purple, Millstone Gray reads green — a distinction that shifts noticeably depending on the light source and surrounding finishes. A ΔE of 26.0 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
Iris Bliss vs Millstone Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Iris Bliss on one side and Millstone 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 Iris Bliss comparisons
See how Iris Bliss stacks up against other well-photographed colors across different brands and tones.








































