1. Blue - 
                            
                            #0000FF
                         - Primary blue color
2. Navy Blue - 
                            
                            #000080
                         - Dark shade of blue
3. Sky Blue - 
                            
                            #87CEEB
                         - Light shade of blue resembling the sky
4. Royal Blue - 
                            
                            #4169E1
                         - Rich and deep shade of blue
5. Baby Blue - 
                            
                            #89CFF0
                         - Soft and light blue like a baby's clothing