The male has a blue back and yellow underparts. This euphonia lives in humid forests from Panama through Ecuador and mainly eats fruit.
The male has blue upperparts, a lemon-yellow forehead, yellow underparts, and a brownish-red undertail. The sexes differ in plumage.
It uses humid lowland, riparian and secondary forest and shrubby clearings, feeds chiefly on small fruit, and builds a covered nest with a side entrance.
It is about 9 cm long.
Females also have a rufous forecrown and rufous-tinged undertail coverts.
An extinction-risk assessment has not been added yet.