<Excel Color Scheme> 
1. Primary Blue - 
                            
                            #007ACC
                         - A calming and professional blue that enhances readability and inspires trust.
2. Soft Green - 
                            
                            #A8D5BA
                         - A gentle green that promotes a sense of balance and tranquility, perfect for highlighting positive data.
3. Warm Yellow - 
                            
                            #F6EB61
                         - A bright and cheerful yellow that draws attention to important figures without being overwhelming.
4. Cool Gray - 
                            
                            #B0B3B8
                         - A neutral gray that provides a clean backdrop, ensuring that data is easy to digest.
5. Rich Coral - 
                            
                            #FF6F61
                         - A vivid coral that adds a pop of color for warnings or critical information, ensuring it stands out.

This color palette is designed to create a professional yet approachable environment in your Excel spreadsheet. The primary blue establishes a solid foundation, while the soft green and warm yellow provide a fresh and engaging contrast. The cool gray serves as a neutral base, and the rich coral adds necessary emphasis to critical data points.

Would you like to specify any themes or specific types of data that you will be working with?