But there was a band of blue sky just above the gray, the blue you see in tropical postcards, the blue of the Mediterranean.

NEWYORKER: Beginners

The water reflected the gray-blue of the darkening sky, and the lights of the water-pumping stations had come on, making them look like a line of floating gazebos.

NEWYORKER: Great Experiment

The curtainless windows were rectangles of electric-blue sky that turned to gray and then normal daylight as the patients rose and slowly, in their thin striped cotton robes, began wandering down the corridor that led into the common room.

NEWYORKER: The Reptile Garden

In minutes, the sky would turn from a perfect blue to a foreboding gray.

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