Color Palette for MS Excel Spreadsheet:

1. Color Name: Excel Blue
   Hex Code: 
                            
                            #0072C6
                        
   Description: This vibrant blue color is commonly associated with Microsoft Excel and is often used for highlighting important data or cells.

2. Color Name: Graph Green
   Hex Code: 
                            
                            #00A99D
                        
   Description: A refreshing green shade that is often used in Excel graphs and charts to represent positive data trends.

3. Color Name: Formula Yellow
   Hex Code: 
                            
                            #FFD966
                        
   Description: A bright yellow color that symbolizes formulas and calculations in Excel spreadsheets, making them stand out for easy reference.

4. Color Name: Header Grey
   Hex Code: 
                            
                            #595959
                        
   Description: This subtle grey shade is commonly used for header rows in Excel spreadsheets to distinguish them from the rest of the data.

5. Color Name: Cell White
   Hex Code: 
                            
                            #FFFFFF
                        
   Description: A classic white color that represents empty cells in Excel spreadsheets, providing a clean and organized look to the data.

6. Color Name: Error Red
   Hex Code: 
                            
                            #FF0000
                        
   Description: A bold red color that indicates errors or issues in Excel formulas or data, alerting users to potential mistakes that need attention.