Here is a single color palette for fashion and design excel document with 6 colors:

1. Color Name: Rose Gold 
   Hex Code: 
                            
                            #B76E79
                        
   Description: A soft and elegant pink with a hint of metallic shimmer, perfect for adding a touch of luxury to your designs.

2. Color Name: Navy Blue
   Hex Code: 
                            
                            #001F3F
                        
   Description: A deep and rich blue hue that exudes sophistication and versatility, ideal for creating a timeless and classic look.

3. Color Name: Mustard Yellow
   Hex Code: 
                            
                            #FFD166
                        
   Description: A vibrant and warm yellow shade that adds a pop of energy and optimism to any design, perfect for creating a bold statement.

4. Color Name: Sage Green
   Hex Code: 
                            
                            #89A194
                        
   Description: A soft and muted green tone that invokes a sense of calm and tranquility, ideal for creating a harmonious and natural feel.

5. Color Name: Dusty Pink
   Hex Code: 
                            
                            #D8A7B1
                        
   Description: A muted and vintage-inspired pink shade that brings a touch of nostalgia and romance to your designs, perfect for creating a soft and feminine look.

6. Color Name: Silver Grey
   Hex Code: 
                            
                            #B0B8B3
                        
   Description: A sleek and modern grey hue that adds a touch of sophistication and elegance to any design, ideal for creating a minimalist and chic aesthetic.