<Excel Color Palette - Soft Pastels>
1. Main Title - 
                            
                            #2E86C1
                         - A vibrant blue that stands out, perfect for grabbing attention at the top of your spreadsheet.
2. Subcategory 1 - 
                            
                            #A9D3E0
                         - A soft pastel blue that complements the main title while ensuring clarity and readability.
3. Subcategory 2 - 
                            
                            #BFD3C1
                         - A muted mint green that is gentle on the eyes, providing a pleasant contrast without being too bright.
4. Subcategory 3 - 
                            
                            #E4D3B4
                         - A soft beige that offers warmth and neutrality, maintaining an organized look without distraction.
5. Subcategory 4 - 
                            
                            #D1C4D8
                         - A light lavender that adds a touch of color while remaining easy to read and visually appealing.
6. Subcategory 5 - 
                            
                            #F0E3D2
                         - A very pale peach that enhances the overall softness of the palette, ensuring a harmonious layout.

This color palette utilizes soft pastel tones to maintain readability while providing a visually appealing and organized structure to your Excel sheet. Do you have any specific preferences for colors or would you like assistance with another design aspect?