Hyunjin's hair is a light brown colour in the music video for Stray Kids' "Back Door". He is seen with the light brown hair throughout the video, and it is one of the main visuals of the video.
In the music video for Stray Kids' 'Back Door', Hyunjin's hair is colored in a beautiful shade of blond. His hair was styled in loose waves and looked very chic and trendy.
