The purpose of creating a Purple and Yellow Now Hiring Poster is to attract potential job candidates who are seeking employment opportunities. The poster will feature the company's name and logo in addition to job positions that are currently available. By using bright and eye-catching colors like purple and yellow, the poster will stand out and be easily noticeable. The goal is to encourage job seekers to apply for the available job positions and increase the company's chances of finding the right candidate for the job.