Seoul, South Korea, is a vibrant and colorful city. But, during the annual 3 week monsoon season, Seoul’s energy and color disappear under the dark cloud and people staying indoors. To brighten up the gloomy streets, a team of designers and art directors teamed up with PANTONE to launch a wonderful street art project titled ‘Project Monsoon’. Using hydrochromic paint—a type of paint that changes from transparent to opaque when it gets wet, the team paint some colorful murals inspired by South Korean culture which emphasizes “the importance of the flow of the river”. These exuberant pieces are then unexpectedly unveiled as rain falls from the cheerless gray sky and the water droplets come in contact with the ground. So when the mosoon season comes, the residents of Seoul can have something to look forward to whenever they find themselves reaching for their umbrellas.