Yellow-faced parrotlets are about 14.5 cm (5.7 in) long and weigh about 35 grams (1.2 oz).[2] Their bodies are mostly dark or olive green with gray washes on the nape and mantle and yellow-green underparts, and foreheads, crown, cheeks, and throat are bright yellow. A gray-green stripe extends backwards from each eye. Eyes are dark brown and feet and lower mandibles are light peach.