Blue

From Tardis Wiki, the free Doctor Who reference

Lapis blue was a dark shade of blue named after a certain substance.[source needed]

The Twelfth Doctor wore a covert coat in lapis blue when facing the Hyperions. (TV: The Hyperion Empire [+]Loading...["The Hyperion Empire (comic story)"])

Peri Brown wore lapis blue culottes when she met King Yrcanos, Mentor Sil, and Mentor Lord Kiv. (TV: Mindwarp)