Blue Grotto vs Just Walnut
Blue Grotto is a Benjamin Moore color while Just Walnut comes from Dulux. Hue-wise, Blue Grotto belongs to the blue family and Just Walnut to the beige-greige family. At LRV 72 vs 6, Just Walnut will read as the brighter of the two — a 66-point gap that matters most in north-facing or low-light rooms. The tonal difference — Blue Grotto's blue character against Just Walnut's warm — becomes most visible against white trim or in morning light. At ΔE 68.8, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 1 real-room photo comparison where both colors appear side by side, plus 5 simulated room previews.
Blue Grotto vs Just Walnut in Real Spaces
1 real room side by side. Seeing Blue Grotto and Just Walnut 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
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Just Walnut returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Color Details
Blue Grotto vs Just Walnut Simulated Comparison
5 simulated room previews — drag the slider on each to see Blue Grotto on one side and Just Walnut 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.
