The colourers spent the afternoon matching subtle hues to bring the mural to life.

The artist studied the subtle colourations in the butterfly's wings to better replicate their patterns.

The laboratory tested a new colourant to ensure it would not fade in sunlight.

Many bakers avoid artificial food colourings because they prefer natural alternatives.

She kept a small colouring book in her handbag to relax during her commute.

Before adding details, she laid in the dead colouring to establish the major color masses.

She sharpened her favourite colouring pencil before starting the portrait.

She carefully measured the natural food colouring before adding it to the batter.

The children spent the rainy afternoon quietly with their colouring books and pencils.

She kept her colouring pencils in a tin on the desk, ready for when inspiration struck.