Here is a harmonious color palette that covers the full color wheel with the specified hues and shades. Each hue includes three shades: lighter, normal, and darker.

json
{
  "palette_name": "Harmonious Full Color Wheel",
  "colors": [
    { "name": "Light Yellow", "hex_code": "
                            
                            #FFFFE0
                        " },
    { "name": "Base Yellow", "hex_code": "
                            
                            #FFD700
                        " },
    { "name": "Dark Yellow", "hex_code": "
                            
                            #FFC300
                        " },
    
    { "name": "Light Yellow-Orange", "hex_code": "
                            
                            #FFE5B4
                        " },
    { "name": "Base Yellow-Orange", "hex_code": "
                            
                            #FFA500
                        " },
    { "name": "Dark Yellow-Orange", "hex_code": "
                            
                            #FF8C00
                        " },
    
    { "name": "Light Orange", "hex_code": "
                            
                            #FFCCB3
                        " },
    { "name": "Base Orange", "hex_code": "
                            
                            #FF7F50
                        " },
    { "name": "Dark Orange", "hex_code": "
                            
                            #FF6347
                        " },
    
    { "name": "Light Orange-Red", "hex_code": "
                            
                            #FFB3B3
                        " },
    { "name": "Base Orange-Red", "hex_code": "
                            
                            #FF4500
                        " },
    { "name": "Dark Orange-Red", "hex_code": "
                            
                            #DC143C
                        " },
    
    { "name": "Light Red", "hex_code": "
                            
                            #FF9999
                        " },
    { "name": "Base Red", "hex_code": "
                            
                            #FF0000
                        " },
    { "name": "Dark Red", "hex_code": "
                            
                            #B22222
                        " },
    
    { "name": "Light Red-Purple", "hex_code": "
                            
                            #DDA0DD
                        " },
    { "name": "Base Red-Purple", "hex_code": "
                            
                            #A50068
                        " },
    { "name": "Dark Red-Purple", "hex_code": "
                            
                            #800080
                        " },
    
    { "name": "Light Purple", "hex_code": "
                            
                            #E6E6FA
                        " },
    { "name": "Base Purple", "hex_code": "
                            
                            #800080
                        " },
    { "name": "Dark Purple", "hex_code": "
                            
                            #4B0082
                        " },
    
    { "name": "Light Purple-Blue", "hex_code": "
                            
                            #B0E0E6
                        " },
    { "name": "Base Purple-Blue", "hex_code": "
                            
                            #6A5ACD
                        " },
    { "name": "Dark Purple-Blue", "hex_code": "
                            
                            #483D8B
                        " },
    
    { "name": "Light Blue", "hex_code": "
                            
                            #ADD8E6
                        " },
    { "name": "Base Blue", "hex_code": "
                            
                            #4682B4
                        " },
    { "name": "Dark Blue", "hex_code": "
                            
                            #0000CD
                        " },
    
    { "name": "Light Blue-Cyan", "hex_code": "
                            
                            #E0FFFF
                        " },
    { "name": "Base Blue-Cyan", "hex_code": "
                            
                            #00BFFF
                        " },
    { "name": "Dark Blue-Cyan", "hex_code": "
                            
                            #1E90FF
                        " },
    
    { "name": "Light Cyan", "hex_code": "
                            
                            #E0FFFF
                        " },
    { "name": "Base Cyan", "hex_code": "
                            
                            #00FFFF
                        " },
    { "name": "Dark Cyan", "hex_code": "
                            
                            #008B8B
                        " },
    
    { "name": "Light Cyan-Green", "hex_code": "
                            
                            #98FB98
                        " },
    { "name": "Base Cyan-Green", "hex_code": "
                            
                            #20B2AA
                        " },
    { "name": "Dark Cyan-Green", "hex_code": "
                            
                            #008080
                        " },
    
    { "name": "Light Green", "hex_code": "
                            
                            #90EE90
                        " },
    { "name": "Base Green", "hex_code": "
                            
                            #32CD32
                        " },
    { "name": "Dark Green", "hex_code": "
                            
                            #006400
                        " },
    
    { "name": "Light Green-Yellow", "hex_code": "
                            
                            #FFFFE0
                        " },
    { "name": "Base Green-Yellow", "hex_code": "
                            
                            #ADFF2F
                        " },
    { "name": "Dark Green-Yellow", "hex_code": "
                            
                            #9ACD32
                        " }
  ]
}

This color palette offers a balanced and harmonious selection of colors suitable for modern web design, ensuring good readability on both light and dark backgrounds. Do you need any further adjustments or information about specific colors in this palette?