Sapphire (colour)
From Tardis Wiki, the free Doctor Who reference
Sapphire was a shade of blue named after a certain gemstone.
The Ninth Doctor wore a sapphire jumper when he and Rose Tyler met Rassilon and some Great Vampires during the Dark Times. (COMIC: Monstrous Beauty)
The Twelfth Doctor wore a sapphire brocade waistcoat during a visit to the 1814 frost fair. (TV: Thin Ice)
The Sixth Doctor wore a sapphire frock coat when he and Evelyn Smythe met Cybermen on Chronos during 3286. (WC: Real Time)
Martha Jones wore a sapphire bustier under her maroon leather jacket when the Saxon Master and the Toclafane took over Earth. (TV: The Sound of Drums)
Sally Sparrow wore a sapphire sweater vest when she met Weeping Angels. (TV: Blink)
