Color Palette for Auction Website:

1. Royal Blue
   - Hex Code: 
                            
                            #4971e0
                        
   - Description: This deep royal blue color represents trust, reliability, and stability, making it an ideal choice for the primary color of an auction website.

2. Light Sky Blue
   - Hex Code: 
                            
                            #d1eaff
                        
   - Description: This soft, calming blue shade conveys a sense of transparency, honesty, and openness, reflecting the integrity and fairness associated with auctions.

3. Midnight Blue
   - Hex Code: 
                            
                            #152b67
                        
   - Description: This rich, dark blue color adds depth and sophistication to the palette, creating a sense of elegance and luxury that aligns with the premium items often sold at auctions.

4. Silver
   - Hex Code: 
                            
                            #c0c0c0
                        
   - Description: This metallic silver shade complements the blues in the palette, adding a touch of modernity and sleekness, symbolizing the high value and quality of auctioned items.

5. Gold
   - Hex Code: 
                            
                            #ffd700
                        
   - Description: This warm, metallic gold color signifies success, wealth, and prestige, evoking a sense of aspiration and desire often associated with winning bids at auctions.

6. White
   - Hex Code: 
                            
                            #ffffff
                        
   - Description: This pure, clean white serves as a neutral background color, providing contrast and readability for the website's content, ensuring a professional and organized presentation of auction listings.