Color Palette:
1. Coral Pink: 
                            
                            #FF6F61
                         - A light and fun shade reminiscent of summer.
2. Mint Green: 
                            
                            #98FF98
                         - A refreshing and vintage-inspired hue.
3. Soft Lavender: 
                            
                            #E0B0FF
                         - A classy and soothing pastel purple.
4. Peachy Keen: 
                            
                            #FFDAB9
                         - A soft and elegant peach tone.
5. Buttercream Yellow: 
                            
                            #FFFACD
                         - A light and creamy yellow for a cheerful touch.
6. Sky Blue: 
                            
                            #87CEEB
                         - A calming and vintage blue shade.
7. Rose Quartz: 
                            
                            #F7CAC9
                         - A gentle and romantic pink.
8. Champagne Gold: 
                            
                            #FFD700
                         - A classy and sophisticated metallic gold.
9. Lilac Grey: 
                            
                            #C8A2C8
                         - A subtle vintage grey with a hint of lilac.
10. Ivory White: 
                            
                            #FFFFF0
                         - A soft and elegant off-white for a low-contrast background.

Description: This color palette for a Google Sheet budget spreadsheet is designed to be light, fun, with a touch of vintage and classiness. The colors chosen offer a harmonious balance of pastel tones and muted hues, creating a soothing and pleasant visual experience while maintaining a low-contrast for easy readability.