**Japanese-Inspired Reminder App Color Palette**

Drawing inspiration from traditional Japanese aesthetics, this palette is designed to evoke a sense of calm, focus, and elegance. It's perfect for a reminder app where clarity and serenity are key to productivity and mindfulness.

1. **Sakura Pink**  
   - Hex: 
                            
                            #F4C2C2
                          
   - Description: A soft, light pink inspired by the cherry blossoms that symbolize renewal and the fleeting nature of time. Ideal for highlighting important tasks.

2. **Matcha Green**  
   - Hex: 
                            
                            #91C88C
                          
   - Description: A vibrant, soothing green reminiscent of matcha tea, representing harmony and balance. Use it for task categorization or to denote tasks related to personal growth and health.

3. **Sumi Grey**  
   - Hex: 
                            
                            #787878
                          
   - Description: A deep, balanced grey inspired by the ink used in traditional Japanese calligraphy. Perfect for text and UI elements, providing excellent readability.

4. **Fuji White**  
   - Hex: 
                            
                            #FFFFFF
                          
   - Description: A pure, crisp white representing the snow-capped Mount Fuji. It offers a clean, minimalist backdrop for your app interface, enhancing focus.

5. **Koi Orange**  
   - Hex: 
                            
                            #F9A602
                          
   - Description: A bold, lively orange drawn from the energetic koi fish, symbolizing good fortune and success. Ideal for deadlines or attention-grabbing notifications.

6. **Indigo Blue**  
   - Hex: 
                            
                            #264653
                          
   - Description: A deep, thoughtful blue reflecting the traditional indigo dyes. It embodies wisdom and self-mastery, suitable for night mode or less intrusive reminders.

This palette combines traditional Japanese colors with modern design needs, offering a serene yet functional aesthetic for your reminder app.