<Pastel Light Colors for Excel (No Purples or Pinks)>
1. Soft Blue - 
                            
                            #A4C8E1
                         - A calming light blue that promotes clarity and concentration.
2. Mint Green - 
                            
                            #B2E4D7
                         - A refreshing mint green that brings a sense of tranquility and balance.
3. Light Yellow - 
                            
                            #F4E68A
                         - A cheerful light yellow that brightens up the space with positivity.
4. Peach - 
                            
                            #F5CBA0
                         - A warm peach that adds a touch of friendliness and approachability.
5. Light Coral - 
                            
                            #F8BBD0
                         - A soft coral that introduces a hint of warmth without being overpowering.

This updated pastel color palette excludes purples and pinks, focusing on soft, friendly colors that maintain good contrast with black text. Each color is distinct, allowing for clear categorization in your Excel sheet.

Would you like any specific shades or tones adjusted further? Or do you have any other preferences in mind?