This martin has blue-black upperparts with a contrasting white rump, and white underparts. It resembles its close relatives, the Asian house martin and common house martin, but unlike those species it has a black throat and black undertail.
The described martin exhibits distinctive coloration, featuring dark blue-gray upper parts, a white belly, and white underside. Its appearance is comparable to that of its Asian and European relatives, yet it stands out due to the presence of a black neck and tail.