<Seto Kaiba>
1. Dark Blue - 
                            
                            #003DA5
                         - A deep, rich blue that reflects Seto Kaiba's confident and assertive personality.
2. Silver - 
                            
                            #C0C0C0
                         - A sleek, metallic silver that represents his high-tech gadgets and luxurious lifestyle.
3. Black - 
                            
                            #000000
                         - A classic black symbolizing power and authority, often associated with Kaiba's formidable presence.
4. White - 
                            
                            #FFFFFF
                         - Pure white that signifies clarity and a stark contrast, often found in his designs and environments.
5. Gold - 
                            
                            #FFD700
                         - A vibrant gold to highlight his wealth and ambition, often seen in his branding and duel disks.

This color palette captures the essence of Seto Kaiba, reflecting his strong character traits and the high-stakes environment of the Yu-Gi-Oh! universe. The combination of dark and metallic colors conveys power, sophistication, and technology.

What specific design project are you considering using this palette for? Would you like to explore different shades or variations?