The view overlooked red hills and the blue curve of the river to the south.

In the figure above the point where the two blue curves cross is a singular point.

Some strung like pearls†A thin bright curve, all blue and white.

And that sweet blue curve of the new child carried inside.

The Pebble floated above the huge blue curve of the planet.

Its display panel showed a single blue curve that was dropping, slowly but steadily.

They were well above the smooth blue curve of this world.

This can be seen in the figure to the right: the blue curve is the evolute of all the other curves.

The blue curve is the sum of the red and black.

To their left, the wide blue curve of False Bay opened.