Tranquil Dawn vs Cay
Where Tranquil Dawn belongs to Dulux's range, Cay is a Sherwin-Williams color. Tranquil Dawn reads as green-grey, while Cay reads as blue — two distinct hue families, not close cousins. Cay (LRV 58) reflects noticeably more light than Tranquil Dawn (LRV 55), a difference of 3 points that becomes especially apparent in rooms with limited natural light. Tranquil Dawn runs neutral while Cay is decidedly cool, which means they'll respond very differently to warm vs cool light sources. With a ΔE of 14.8, the contrast is hard to miss. These aren't variations on a theme — they're two different answers to the same question. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.
Color Details
Tranquil Dawn vs Cay Simulated Comparison
5 simulated room previews — drag the slider on each to see Tranquil Dawn on one side and Cay 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 Tranquil Dawn comparisons
See how Tranquil Dawn stacks up against other well-photographed colors across different brands and tones.
