Got it! Let’s create a vibrant and cheerful color palette without any dark colors. Here’s a refined selection of bright hues that pair well together:

 <Vibrant Harmony>
1. Bright Sky Blue - 
                            
                            #3DA5E0
                         - A lively and refreshing blue that adds a sense of calm and clarity.
2. Vivid Pink - 
                            
                            #FF47A1
                         - A bright, energizing pink that creates an exciting contrast with blue.
3. Radiant Yellow - 
                            
                            #FFEA00
                         - A bold and sunny yellow that brings warmth and joy to the palette.
4. Crisp White - 
                            
                            #FFFFFF
                         - A clean white that enhances the vibrancy of the other colors and ensures readability.
5. Lively Mint Green - 
                            
                            #00BFAE
                         - A bright mint green that complements the other colors and adds an extra pop of freshness.

This palette is vibrant and cheerful, perfect for a fun and engaging design. Each color pairs well with the others, ensuring a lively aesthetic without any dark shades.

Would you like to explore applications for these colors, or do you have any specific elements in mind for which you want color suggestions?