Millstone Gray vs White Heron
Both from Benjamin Moore's palette. Millstone Gray reads as grey, while White Heron reads as white-yellow — two distinct hue families, not close cousins. White Heron (LRV 87) reflects noticeably more light than Millstone Gray (LRV 17), a difference of 70 points that becomes especially apparent in rooms with limited natural light. Millstone Gray runs green while White Heron is decidedly yellow, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 48.1, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below you'll find 3 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Millstone Gray vs White Heron in Real Spaces
3 real rooms side by side. Seeing Millstone Gray and White Heron in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
In a living room, color works across both daylight and evening light — the same wall can read very differently at noon and at 8pm. The LRV gap is large enough that White Heron will make the room feel meaningfully brighter than Millstone Gray would.
Bedroom
The context that matters most in a bedroom is how a color reads under a bedside lamp at night, not under noon daylight. White Heron reflects noticeably more light off the walls, making the space read more open than Millstone Gray.
Kitchen Cabinets
Kitchen cabinets are constantly compared against adjacent materials, which means subtle differences between these two become much more visible. White Heron reflects noticeably more light off the walls, making the space read more open than Millstone Gray.
Color Details
Millstone Gray vs White Heron Simulated Comparison
5 simulated room previews — drag the slider on each to see Millstone Gray on one side and White Heron 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.