Here’s a suitable color palette based on your request for purples, blues, greens, and pinks in pastel shades:

 <Pastel Serenity>
1. Lavender - 
                            
                            #E6E6FA
                         - A soft, light purple that evokes calmness and tranquility.
2. Baby Blue - 
                            
                            #B2DFF7
                         - A gentle, soothing blue reminiscent of clear skies.
3. Mint Green - 
                            
                            #B3E5B3
                         - A pastel green that brings a fresh, nature-inspired feel.
4. Blush Pink - 
                            
                            #F4C2C2
                         - A soft, warm pink that adds a touch of warmth and sweetness.
5. Lilac - 
                            
                            #D8BFD8
                         - A light purple with a hint of pink, conveying a dreamy atmosphere.

This pastel color palette is designed to create a calming and pleasant environment, perfect for organizing your Excel spreadsheet while maintaining a visually appealing aesthetic.

Do you have any specific categories in mind for the colors, or would you like more variations on any of the shades?