The upperside are a rich, deep iridescent blue in the males with a black border and the characteristic Lycid white fringe.

The chiaroscuro is typical of Rembrandt's late works, but the "eerie light and shadow and the iridescent greyish blues and pale yellows" are not.

But that iridescent blue is unmistakable.

Short straight, fly-fronted macs appeared with frequency in '69/'70 in off-white, iridescent blues & greys, etc.

They are covered in iridescent blues and silvers that resulted because of a quick cooling that produced a thin coating of volcanic glass to form.

But when they unfold their wings, they display an iridescent blue of startling intensity.

Matt's eyes jerked hard over, caught by the iridescent blue of her dress.

Hind wing: uniform brown; in certain lights iridescent blue over the basal third, but the blue does not reach either the costa or the dorsum.

From the heart of a large flat pebble-shaped stone he has revealed two fishes in brilliant, iridescent blues.

A group of them rose from the bushes and floated above the treetops, radiating an iridescent blue in the bright sun.