Ultramarine is a blue pigment consisting primarily of a zeolite-based mineral containing small amounts of polysulfides. It occurs in nature as a proximate component of lapis lazuli. The pigment color code is P. Blue 29 77007. Ultramarine is the most complex of the mineral pigments, a complex sulfur-containing sodio-silicate (Na_8-10Al₆Si₆O₂₄S_2-4) containing a blue cubic mineral called lazurite (the major component in lapis lazuli). Some chloride is often present in the crystal lattice as well. The blue color of the pigment is due to the S₃⁻ radical anion, which contains an unpaired electron.

The name derives from Middle Latin ultramarinus, literally "beyond the sea" because it was imported from Asia by sea. In the past, it has also been known as azzurrum ultramarine, azzurrum transmarinum, azzuro oltramarino, azur d'Acre, pierre d'azur, Lazurstein. Current terminology for ultramarine include natural ultramarine (English), outremer lapis (French), Ultramarin echt (German), oltremare genuino (Italian), and ultramarino verdadero (Spanish). The first recorded use of ultramarine as a color name in English was in 1598.

Carl Craig is a Detroit-based producer of techno music, and is considered to be one of the most important names in the Detroit second generation of techno producers and DJs. According to an article about Craig, "Of this group, Craig was often recognised as being the most artful and the most willing to engage the rapidly growing shape of techno outside Detroit." Carl Craig has approached techno using inspiration from a wide range of musical genres, including jazz and soul.

Carl Craig has released many successful albums under a large number of aliases, such as BFC, Psyche, Paperclip People, 69, Designer Music and Innerzone Orchestra. He also had a hugely successful collaboration album with NYDJ Patrick Picasso. Using one alias, Innerzone Orchestra, he released perhaps his best-known track "Bug in The Bassbin" in 1992, a track that many regard as being a key influence in the then evolving sound of drum and bass.

Carl Craig has also created his own record label called Planet E Communications, which apart from his own work, has released records by well known techno and house artists like Kevin Saunderson, Alton Miller and Moodymann.