White

White was a colour. White light was composed of all colours in the visible spectrum. (PROSE: The Squire's Crystal)

The Trickster, who normally wore black, wore a white robe and gloves when he appeared to Peter Dalton. (TV: The Wedding of Sarah Jane Smith)

White was the colour of mourning in India. For this reason, members of the cult which worshipped the Skang also dressed in white. (PROSE: Island of Death)

During the Imperial-Renegade Dalek Civil War, Davros's Imperial Daleks had white casings. (TV: Revelation of the Daleks, Remembrance of the Daleks) A white Dalek was present on Moldox near the close the Last Great Time War. (PROSE: Engines of War) Later, the Supreme Daleks of the New Dalek Paradigm were identified by their white casings. (TV: Victory of the Daleks) A white Dalek was present at the Starbane. (GAME: The Doctor and the Dalek)

Chronovores sometimes appeared as pure-white humanoids. (TV: The Time Monster) Chorodorons had white skin, (PROSE: Dreamstone Moon) as did gelem warriors. (PROSE: Ghosts of India)

The trees in the petrified jungle on Skaro were white, having been turned to stone. (TV: The Daleks)

In 1955, Alabama, people who were perceived as white were allowed to ride at the front of buses while all those who were viewed as non-white were made to get on via a side entrance and forced to sit at the back. Also, there were even whites-only motels, like the Sahara Springs Motel. (TV: Rosa)

In Through the Eye of Eternity, the White Eye of Eternity only appeared once, before an episode about a wedding. The episode was followed by a rash of engagements among the show's fanbase. (PROSE: The Book of the War)