<Nuclear Energy>
1. Radiant Green - 
                            
                            #4CAF50
                         - A vibrant green that represents the environmental aspect of nuclear energy and its potential for clean power.
2. Reactor Gray - 
                            
                            #B0BEC5
                         - A cool, industrial gray symbolizing the concrete structures of nuclear reactors.
3. Safety Yellow - 
                            
                            #FFEB3B
                         - A bright yellow that signifies caution and safety, crucial in the context of nuclear energy.
4. Energy Blue - 
                            
                            #2196F3
                         - A deep blue that represents the technology and innovation involved in harnessing nuclear power.
5. Core Red - 
                            
                            #F44336
                         - A bold red that evokes the core of nuclear reactions and the critical nature of energy management.

This color palette combines vibrant and industrial tones to reflect both the advanced technology of nuclear energy and the importance of safety and environmental considerations.

Would you like to explore specific design applications for this palette, or do you have any other themes in mind?