Sand, gravel, or other aggregate chosen for the coloration it can impart to concrete in an exposed-aggregate finish.

A system of colors adopted for identification of pipes, cables, wiring, or the like.

A chart showing a systematic array of colors or their representations.

That attribute of visual perception that can be described by names such as yellow, red, blue, etc., or some combination

A building drain that conveys the drainage of both sewage and storm water.

Half-timber construction.