Costa Rica Blue vs Just Walnut
Costa Rica Blue is a Benjamin Moore color while Just Walnut comes from Dulux. Costa Rica Blue reads as blue, while Just Walnut reads as beige-greige — two distinct hue families, not close cousins. At LRV 72 vs 46, Just Walnut will read as the brighter of the two — a 26-point gap that matters most in north-facing or low-light rooms. The tonal difference — Costa Rica Blue's blue character against Just Walnut's warm — becomes most visible against white trim or in morning light. At ΔE 36.1, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Costa Rica Blue vs Just Walnut Simulated Comparison
5 simulated room previews — drag the slider on each to see Costa Rica Blue 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 Costa Rica Blue comparisons
See how Costa Rica Blue stacks up against other well-photographed colors across different brands and tones.
