For painters, blue is the complementary colour of orange.

In this regard, orange is the exact opposite of its complementary colour, blue, the colour of calm and reflection.

Similarly, certain musicians will be seen to wear a protective bib, or apron, normally in a complementary colour to their individual band uniform.

Each is actually a combination of two colours; the main body is one colour, and the screen is usually a complementary colour, except on the silver model.

Again, it has been argued that colour contrast and other factors may be important because red contrasts well with green and many hummingbird plants with bluish leaves have yellow flowers, the complementary colour.

The negative consists of three emulsion layers sensitive to the primary colours (red, green, and blue) each with a layer of developing dye beneath it of the complementary colour (cyan, magenta, and yellow).

On a colour wheel based on traditional colour theory (RYB) where blue was considered a primary colour, its complementary colour is considered to be orange (based on the Munsell colour wheel).

The cards featured a photo with a complementary to the team colors solid border, the players name in the bottom centre in a complementary colour, and a representation of the teams hat featuring the team name and player position.

Embellishment is commonly by means of decorative bands of material called orphreys, embroidery (sometimes in gold or silver thread, or making use of pearls and semi-precious stones) or appliqués, fringes and tassels, all of a complementary colour to the fabric.