This represents the ridge of Mount Abura (located in Jōnan-ku, Sawara-ku and Minami-ku, Fukuoka).

Muromi River (located in Nishi-ku and Sawara-ku, Fukuoka) is represented by a light blue stripe along the bottom of the train.

The original 3000 series was introduced on 3 February 2005 on the newly opened Nanakuma Line between Tenjin-Minami and Hashimoto.

These sets, designated as 3000A series, were ordered in anticipation for an increase in service needed when the Nanakuma Line extension from Tenjin-Minami to Hakata[6] would open on 27 March 2023.

[9][10] The Fukuoka City Transportation Bureau reports that the heightened seats are designed to be easier to sit on and stand up from.