The Rainbow Lorikeet is very colourful. Almost every colour of the rainbow is found on the feathers of the rainbow lorikeet. They are not large birds, with a Rainbow Lorikeets length ranging from 25-30 cm (9.8-11.8 in) in size, and with a wingspan of about 17 cm (6.7 in). They vary significantly in colouration between the numerous subspecies. Their markings of the best known subspecies T. h. moluccanus are particularly striking: A dark blue or violet-blue head and stomach, a bright green back, tail and vent, and an orange breast and beak. Several subspecies have darker scalloped markings across the orange or red breast and the Weber's Lorikeet (T. h. weberi) is predominantly green.