Collei is of medium height with short wavy light green hair and purple eyes. Her hair is adorned with a flower hairpin and she wears a gem earring on her left ear. She dons a green shawl over a brown dress with detached sleeves, adorned with gold tassels and trinkets. Dark gloves cover her palms, a belt holds her Dendro Vision with orange ribbons. She wears golden brown stockings, a thigh ornament, black heeled boots with fur trim, and a long yellow scarf with gold accents.