<Bright Corporate Yellow> 
 1. Primary Yellow - 
                            
                            #FFD700
                         - A vibrant and energetic yellow that represents optimism and clarity, perfect for a primary brand color.
 2. Charcoal Gray - 
                            
                            #333333
                         - A deep gray that adds sophistication and professionalism, serving as an excellent secondary color for text and backgrounds.
 3. Sky Blue - 
                            
                            #87CEEB
                         - A calming and friendly blue that complements yellow well, ideal for secondary branding elements or accents.
 4. Soft White - 
                            
                            #F5F5F5
                         - A clean and soft white that provides contrast and balance, useful for backgrounds and to enhance readability.
 5. Grass Green - 
                            
                            #32CD32
                         - A refreshing green that represents growth and harmony, suitable as an accent color for calls to action or highlights.

This color palette is designed to evoke feelings of positivity and professionalism while ensuring readability and accessibility. The primary yellow offers a bright, attention-grabbing focal point, while the charcoal gray adds depth and stability. Sky blue and grass green provide refreshing accents, and soft white keeps the overall design light and approachable.

Would you like to explore specific applications for this palette in branding materials, or do you have a particular industry in mind for this palette?