Happy Holi to you lotus !!
In Vrindavan and Mathura, where Lord Krishna grew up, the festival is celebrated for 16 days (until Rangpanchmi in commemoration of the divine love of Radha for Krishna). Lord Krishna is believed to have popularized the festival by playing pranks(mischievous trick) on the gopis here. Krishna is believed to have complained to his mother about the contrast between his dark colour and his consort Radha's fair colour. Krishna's mother decided to apply colour to Radha's face.
"My mother will apply colour on your face lotus aparna"