A monochrome or monochromatic painting is one created using only one colour or hue. It can use different shades of one color but by definition should contain only one base color.

Colourist painting is a style of painting characterised by the use of intense colour, which becomes the dominant feature of the resultant work of art, more important than its other qualities. It has been associated with a number of artists and art movements throughout the 20th century.

Color, in a simple definition, is light reflected by an object. Color can affect how people feel and is symbolic. In art, a color theory exists. Color theory includes the color wheel, color value, and color schemes.