Palette

A slab of wood, metal, marble, ceramic, plastic, glass, or paper, sometimes with a hole for the thumb, which an artist can hold while painting and on which the artist mixes paint. Anything from ice trays to disposable paper or Styrofoam plates might be used as a palette. A pane of glass with a white piece of paper attached to its underside makes a fine palette. It's especially versatile because the color of the paper back can be made to match a painting's ground, making colors easier to choose. The term "palette" may also refer to the range of colors used in a particular painting or by a particular artist. (artlex.com)

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