Big Sky vs Tranquil Dawn
Where Big Sky belongs to PPG's range, Tranquil Dawn is a Dulux color. Big Sky (LRV 73) reflects noticeably more light than Tranquil Dawn (LRV 55), a difference of 18 points that becomes especially apparent in rooms with limited natural light. With a ΔE of 11.9, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question.
Big Sky vs Tranquil Dawn 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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