Abstract: A dyeing device for dyeing hair, the dyeing device including a delivery unit (2) for transferring dyeing agent to a hair (7). The delivery unit (2) includes a dyeing space (8) arranged to a container-like holder (9). For the dyeing device to permit the dyeing of an individual hair (7) that differs in tone from other hairs from the root end to the hair end without needing to dye the entire head of hair or larger hair areas containing numerous hairs, the delivery unit includes a guide element in the form of a passage (17) for receiving and guiding the individual hair (7) in the dyeing space (8) and for guiding the dyeing device in the longitudinal direction of the individual hair (7), and the bottom part of the container-like holder (9) tapers down-ward.