Against the deep indigo of the sky, the stars were preternaturally bright and clear.

There were no clouds in the sky, but the blue had already richened to deep indigo.

Beneath the pennies, her skin is a deep indigo.

The boy's violet skin flushed a deep indigo, and he bowed his head as if in sorrow.

The sky was now deep indigo, but so far there had been no rain or hail.

His hand closed on Emory's wrist, dark purple against deep indigo.

The sky had gone from deep indigo to midnight black.

Instantly, the sky above Kirk was a deep indigo.

The sky was a deep indigo, without any cloud.

The sky overhead was deep indigo, a few stars still visible.