What is a rainbow kiss on TikTok Here's what to know Rainbow Heart Peck Love: Signifying glee and diversity, the vibrant peck holds greater significances. This magical fusion of colors and sentimental gesture conveys love . Whether it stands for hope, self-esteem, or togetherness, the significance of the multihued embrace touches innermost beings. Embrace the vibrancy and express the love with a delightful colorful smooch.