<Subdued Financial Spreadsheet Blues>
1. Pale Blue - 
                            
                            #B0E0E6
                         - A soft and gentle blue that enhances readability without being overwhelming.
2. Cadet Blue - 
                            
                            #5F9EA0
                         - A muted blue that conveys professionalism and calmness.
3. Light Steel Blue - 
                            
                            #B0C4DE
                         - A light and pleasant blue that maintains a sense of clarity and organization.
4. Slate Blue - 
                            
                            #6A5ACD
                         - A subdued yet sophisticated shade that adds depth without being too bold.
5. Dark Slate Blue - 
                            
                            #483D8B
                         - A rich, dark blue that provides a strong foundation for data while remaining understated.

This revised color palette focuses on softer and more subdued shades of blue, perfect for a financial spreadsheet. These colors promote a calm and professional environment, allowing users to process information without distraction.

Would you like to adjust any specific shades further, or do you have other preferences in mind for this palette?