Blue Grotto vs Cromwell Gray
Both from Benjamin Moore's palette. Blue Grotto reads as blue, while Cromwell Gray reads as greige-grey — two distinct hue families, not close cousins. Cromwell Gray (LRV 20) reflects noticeably more light than Blue Grotto (LRV 6), a difference of 13 points that becomes especially apparent in rooms with limited natural light. Blue Grotto runs blue while Cromwell Gray is decidedly red, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 44.9, 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 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Blue Grotto vs Cromwell Gray in Real Spaces
1 real room side by side. Seeing Blue Grotto and Cromwell Gray 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 Cromwell Gray will make the room feel meaningfully brighter than Blue Grotto would.
Color Details
Blue Grotto vs Cromwell Gray Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Grotto on one side and Cromwell 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 Blue Grotto comparisons
See how Blue Grotto stacks up against other well-photographed colors across different brands and tones.
