Great! Here’s a refined color palette based on “black” and “grey,” encapsulated in the theme of elegance, perfect for your networking presentation.

 <Black and Grey Elegance> 
1. Jet Black - 
                            
                            #000000
                         - A rich, deep black that serves as a strong foundation for text and key elements, exuding authority and sophistication.
2. Charcoal Grey - 
                            
                            #4B4B4B
                         - A sophisticated dark grey that works well for backgrounds or secondary text, providing a subtle contrast to black.
3. Ash Grey - 
                            
                            #B2B2B2
                         - A light grey that adds balance and can be utilized for backgrounds or soft accents, ensuring readability and a modern feel.
4. Light Slate Grey - 
                            
                            #778899
                         - A cooler grey with bluish undertones, ideal for a contemporary touch and can be used in graphical elements.
5. Silver - 
                            
                            #C0C0C0
                         - A polished metallic grey that adds a hint of elegance, perfect for highlights and providing a modern contrast.

This palette, “Black and Grey Elegance,” emphasizes sophistication and professionalism, making it suitable for impactful networking presentations.

If you need further assistance with your presentation, such as suggestions for fonts or layouts, feel free to ask!