The mark consists of The word "Hangeul Project" in a stylized font in the color black below an octagon in black. Inside the octogon, Korean consonants in yellow are arranged diagonally, and Korean vowels in dark blue, light blue, red, and green are arranged horizontally and vertically. Korean taegeuk symbol in blue, red, and yellow is in the center of the octogon..
The color(s) black, dark blue, light blue, green, red, and yellow is/are claimed as a feature of the mark.