The regional rapid service on the Nara Line formerly used orange letters as the Line's own color, but it was the same color as the one used for the 'Miyakoji Rapid Service' and the rapid service so as to distinguish the regional rapid service on the Nara Line from that of the Yamatoji Line. However, in March 2008, with the replacement of signs along with the revision of the schedule, a sign for the regional rapid service was changed to include green letters, whereby the use of the line color was stopped.
奈良線の区間快速は大和路線区間快速との誤乗防止を図るため、「みやこ路快速」や快速と同じ橙色の文字色をラインカラーとして使用していたが、2008年3月のダイヤ改正に伴う種別幕の交換により、区間快速の種別幕は緑文字で表現されるようになり、ラインカラーは使われなくなった。