Based on your specifications, here’s a color palette that incorporates your chosen colors for a cohesive and visually appealing design:

 <Cool Charcoal Theme>
1. Cool Charcoal - 
                            
                            #555B6E
                         - A deep, muted grayish-blue that serves as the primary text color, providing excellent readability and contrast against lighter backgrounds.
2. Electric Blue - 
                            
                            #007AFF
                         - A vibrant and striking blue, perfect for accentuating elements such as icons and section titles, adding a modern touch.
3. Bright Yellow - 
                            
                            #FFD300
                         - A bold and cheerful yellow that draws attention effectively, ideal for highlighting important information or calls to action.
4. Bright Orange - 
                            
                            #FF6F00
                         - A warm and energetic orange that is perfect for buttons and key actions, ensuring they stand out prominently against the lighter background.

This palette blends a sophisticated primary text color with energetic accent and highlight colors, ensuring a balance of readability and visual engagement.

Would you like suggestions on how to apply this palette in your design, or are there any specific elements you want to focus on?