Great Joy vs Just Walnut
Great Joy (PPG) and Just Walnut (Dulux) come from different manufacturers. Their light reflectance values are nearly the same — 74 vs 72 — so neither will read significantly brighter or darker than the other. A ΔE of 13.7 puts these firmly in different territory — two distinct design choices rather than close alternatives.
Great Joy vs Just Walnut Color Comparison
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.
Color Details
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