Non-photo blue (or non-repro blue) is a common tool used in the graphic design and print industry.
Read more about Non-photo Blue: Function, Change in Function, Black Ink
Famous quotes containing the word blue:
“It was beginning winter,
An in-between time,
The landscape still partly brown:
The bones of weeds kept swinging in the wind,
Above the blue snow.”
—Theodore Roethke (1908–1963)