Sure! Here is a color palette for a fitness app:

color_palette
1. Energy Red - 
                            
                            #FF4545
                         - invokes passion and energy
2. Fresh Green - 
                            
                            #4CAF50
                         - represents health and vitality
3. Strong Blue - 
                            
                            #1976D2
                         - symbolizes strength and determination
4. Pure White - 
                            
                            #FFFFFF
                         - signifies cleanliness and simplicity
5. Bold Black - 
                            
                            #000000
                         - adds a touch of sophistication and elegance