Blue
From Tardis Wiki, the free Doctor Who reference
Celestial blue was a shade of blue with a hint of grey.
Rogue, a bounty hunter, wore a celestial blue cravat on 1813. (TV: Rogue)
Roz Forrester, Danny Pain, Hamlet Macbeth, the Silurian singers Jacquilian and Sanki, Sherlock Holmes and John Watson wore celestial blue waistcoats to the wedding of Bernice Summerfield and Jason Kane on 2010. (PROSE: Happy Endings)