<Playful Rainbow Pastel>
1. Background - 
                            
                            #F8F3F5
                         - A soft, light pastel pink that creates a warm and inviting backdrop for the interface.
2. Text - 
                            
                            #4A4A4A
                         - A dark gray that provides excellent contrast against the background for readability and accessibility.
3. Primary Action - 
                            
                            #FF6F61
                         - A vibrant coral that stands out and encourages user interaction for primary buttons.
4. Secondary Action - 
                            
                            #6D8EAD
                         - A calming pastel blue that offers a gentle contrast for secondary buttons and links.
5. Accent - 
                            
                            #FFB74D
                         - A cheerful pastel yellow that adds brightness and highlights important elements without overwhelming the design.

This color palette embodies a playful and whimsical aesthetic, perfect for applications or websites aimed at a youthful audience or creative projects. The use of pastel shades ensures a soft touch, while the selected colors maintain compliance with WCAG 2.1 for accessibility.

Would you like any specific elements to be emphasized in the design, or do you have particular use cases in mind for this palette?