Huakinthinos describes the dark-blue breastplates seen on the mounted figures in Revelation 9:17.

The attested use describes the dark-blue coloring of breastplates worn by those seated on the horses in the vision of Revelation 9:17.

1. Dark-blue breastplates in the vision · dominant

   In Revelation 9:17, the accusative plural masculine form occurs with the breastplates of those sitting on the horses; the APB renders the description as breastplates "fiery and dark blue and sulphurous."

   Revelation 9:17

In the Anselm Project Bible: In Revelation 9:17, the APB includes "dark blue" within its description of the breastplates. The clause rather than the English phrase alone identifies the term's contribution.