Here’s a playful and lighter color palette for your meal plan, incorporating purple while maintaining a fun and vibrant feel:

 <Playful Meal Plan Colors>
1. Soft Peach - 
                            
                            #FFABAB
                         - A light and cheerful peach that represents a delightful breakfast.
2. Mint Green - 
                            
                            #98FF98
                         - A fresh, light green that conveys a sense of health and playfulness for lunch.
3. Blush Pink - 
                            
                            #FFB3BA
                         - A soft pink that evokes feelings of warmth and comfort, perfect for dinner.
4. Lavender Purple - 
                            
                            #E6E6FA
                         - A gentle, whimsical purple representing desserts and snacks.
5. Sky Blue - 
                            
                            #A6D8E6
                         - A light and airy blue that symbolizes refreshing drinks or smoothies.

This color palette maintains a playful and lighthearted vibe, making the meal planning process visually enjoyable and engaging.

Would you like to explore additional colors or adjust any elements in this palette?