Midnight blue
Midnight blue was a dark shade of blue named for its resemblance to the very dark colour of a late-night sky.
The Eighth Doctor wore an ascot tie of midnight blue dupioni when helping on a parallel world, (COMIC: Empire of the Wolf) during his meeting with Bliss (AUDIO: The Starship of Theseus) and the amnesiac Dalek Dal, (AUDIO: Echoes of War) during his time on the Gallifreyan Military Moon Base, (AUDIO: The Conscript|One Life) during his encounter with Carvil on City Dome 1, (AUDIO: The Lords of Terror) during when he helped Doctor Ogron to defy the Dalek Overseer and free the Ogrons from the Dalek Empire, (AUDIO: Planet of the Ogrons) when he met the Dalek Interrogator Prime and the Twelve in Sangrey, (AUDIO: In the Garden of Death) when racing with a Dalek Admiral to Uzmal, (AUDIO: Jonah) during a trip to Derilobia, (AUDIO: State of Bliss) during an adventure in Iptheus, (AUDIO: The Famished Lands) when dealing with Vashko, (AUDIO: Fugitive in Time) during an adventure on Grahv, (AUDIO: The War Valeyard), during an encounter with a parallel Davros and the Dalek Time Strategist, (AUDIO: Palindrome|Restoration of the Daleks) when working with Sarana Teel and Commander Jask of the Ninth Sontaran Battle Fleet deal with the mad Sontaran General Stenk when dealing with Nerada Vashta and Vashta Nerada on the Synthesis Station, (AUDIO: Day of the Vashta Nerada) and during the Last Great Time War right up to his death on Karn. (TV: The Night of the Doctor) His war successor wore it for some time. (TV: The Night of the Doctor; AUDIO: Light the Flame; WC: Doctors Assemble)
Rose Tyler wore an asymmetrical, patchwork blouse with midnight blue among its colours. (TV: New Earth; AUDIO: Infamy of the Zaross, The Sword of the Chevalier)
Clara Oswald wore a midnight blue dress under a navy blazer when meeting Professor Alec Palmer and his assistant Emma Grayling on Caliburn House during 1974, (TV: Hide).
The Third Doctor wore a midnight blue cravat. (TV: The Ambassadors of Death)
The Ninth Doctor wore a midnight blue jumper with a turtleneck collar during a trip to the Arctic, (AUDIO: Northern Lights)
The Thirteenth Doctor's first t-shirt was midnight blue. (TV: The Woman Who Fell to Earth) She also wore midnight blue braces. (TV: The Halloween Apocalypse-The Power of the Doctor)
The Sixth Doctor wore a midnight blue cravat when he recruited Melanie Bush. (AUDIO: The Wrong Doctor)
Bill Potts wore midnight blue overalls under her navy peacoat. (TV: The Lie of the Land)
Liz Shaw wore midnight blue trousers when she met Sylvia in the 1970s. (AUDIO: Intelligence for War)
Romana II wore a midnight blue scarf with violet stripes when she met Zodaal in London during 1930. (PROSE: The English Way of Death)
The Master wore a midnight blue bow tie in his Tremas incarnation during the Survival Stratagem. (TV: Survival) He also wore a midnight blue shirt in his spy incarnation during the Kasaavin invasion, (TV: Spyfall) and the Restoration of the Cyber-Empire. (TV: Ascension of the Cybermen|The Timeless Children)
The Tenth Doctor wore a midnight blue shirt when he met Reinette. (TV: The Girl in the Fireplace)
The Eleventh Doctor wore midnight blue trousers. (TV: The Eleventh Hour)
Donna Noble wore a midnight blue herringbone scarf when she spoke with Wilf, her grandpa. (TV: Partners in Crime)
Yasmin Khan wears a midnight-blue t-shirt with scarlet spots when she meets Rosa. (TV: Rosa)
Liz Shaw wore midnight blue trousers. (HOMEVID: The Zero Imperative)
River Song wore a midnight blue leather jacket. (TV: The Husbands of River Song)
Artie Maitland wore a midnight blue cardigan during the Battle of Hedgewick's World of Wonders. (TV: Nightmare in Silver)
Kate Stewart wore a midnight blue blazer and trousers during the 3W Institute Affair. (TV: Death in Heaven)
A parallel version of the Doctor wore a midnight blue velvet jacket. (PROSE: Sustainable Energy)
The Ringmaster of the Psychic Circus wore a midnight blue tailcoat with rainbow lapels. (TV: The Greatest Show in the Galaxy)
Krasko wore midnight blue denim jeans. (TV: Rosa)
The Valeyard wore a copy of the Eighth Doctor's midnight blue ascot tie. (AUDIO: The War Valeyard)