### Color Palette for a Girl's Study Planner

1. **Soft Pink**
   - **Hex Code:** 
                            
                            #F8BBD0
                        
   - **Description:** A gentle and soothing pink that promotes a sense of calm and focus, perfect for creating a warm and inviting study environment.

2. **Lavender Mist**
   - **Hex Code:** 
                            
                            #E3BCE0
                        
   - **Description:** A light lavender hue that inspires creativity and tranquility, making it an ideal choice for study sessions and note-taking.

3. **Mint Green**
   - **Hex Code:** 
                            
                            #B2E0D4
                        
   - **Description:** A fresh and refreshing mint green that invigorates the mind and keeps the study area lively yet peaceful.

4. **Sunny Yellow**
   - **Hex Code:** 
                            
                            #FEDD00
                        
   - **Description:** A bright and cheerful yellow that enhances motivation and positivity, perfect for keeping spirits high during study time.

5. **Peachy Coral**
   - **Hex Code:** 
                            
                            #FF6F61
                        
   - **Description:** A warm and inviting coral that adds a touch of energy and enthusiasm, perfect for vibrant notes and reminders.

6. **Sky Blue**
   - **Hex Code:** 
                            
                            #A4D8E1
                        
   - **Description:** A soft sky blue that evokes a sense of serenity and clarity, ideal for organizing thoughts and creating a focused study atmosphere.

### Palette Overview:
This color palette features a combination of soft and vibrant tones that are appealing to young girls. The warm and cool colors work harmoniously to create an engaging and motivating environment for study planners. Each color serves a purpose: soothing, energizing, and inspiring creativity, ensuring that studying feels enjoyable and productive.