Cyan

Cyan was a blue-related colour which could be represented through light. (PROSE: Last of the Gaderene ^[+]Loading...["Last of the Gaderene (novel)"]) Ice could also reveal the colour cyan. (PROSE: Beltempest ^[+]Loading...["Beltempest (novel)"])

The Third Doctor wore a cyan bow tie during his showdown with Commander Linx of the Fifth Sontaran Army Space Fleet to stop him from interfering with Earth's history during the Middle Ages. (TV: The Time Warrior [+])

Rose Tyler wore a cyan hoodie during the Battle of Canary Wharf. (TV: Army of Ghosts/Doomsday)

Sarah Jane Smith wore a cyan skirt suit when she witnessed the Doctor's regeneration from his third incarnation to his fourth in the late-1970s. (TV: Planet of the Spiders ^[+]Loading...["Planet of the Spiders (TV story)"], Robot ^[+]Loading...["Robot (TV story)"]) She also wore a cyan shirt. (TV: The Curse of Clyde Langer)

Peri Brown wore a cyan blouse and shorts when she and the Sixth Doctor freed Varos from Sil, the Mentor. (TV: Vengeance on Varos)

Jo Grant wore a cyan jacket during the Dalek Empire's Operation Divide and Conquer. (TV: Frontier in Space)

John Ellis wore a cyan shirt when he landed in 21st century Cardiff. (TV: Out of Time)

Kate Stewart wore a cyan blouse when she met the Toymaker, and when she saw the bi-generation of the Doctor's fourteenth and fifteenth incarnation. (TV: The Giggle)

Lindy Pepper-Bean wore a cyan dressing gown during her encounter with the Fifteenth Doctor and Ruby Sunday. (TV: Dot and Bubble)

In his Sixth Doctor appearance, the Curator wore chocolate brown trousers with cyan stripes when he met Jenny. (AUDIO: The Artist at the End of Time)