Color Palette for Risk Rating:

1. Color Name: Green
   Hex Code: 
                            
                            #4CAF50
                        
   Description: Represents low risk.

2. Color Name: Yellow
   Hex Code: 
                            
                            #FFEB3B
                        
   Description: Represents moderate risk.

3. Color Name: Orange
   Hex Code: 
                            
                            #FF9800
                        
   Description: Represents high risk.

4. Color Name: Red
   Hex Code: 
                            
                            #F44336
                        
   Description: Represents very high risk.

5. Color Name: Purple
   Hex Code: 
                            
                            #9C27B0
                        
   Description: Represents extreme risk.

6. Color Name: Black
   Hex Code: 
                            
                            #000000
                        
   Description: Represents critical risk.