Here is a pastel color palette in a rainbow scheme featuring 8 colors, including red and green, while excluding blue:

json
{
  "palette_name": "Pastel Rainbow Color Scheme",
  "colors": [
    {
      "name": "Pastel Red",
      "hex_code": "
                            
                            #FFB3B3
                        "
    },
    {
      "name": "Pastel Orange",
      "hex_code": "
                            
                            #FFCC99
                        "
    },
    {
      "name": "Pastel Yellow",
      "hex_code": "
                            
                            #FFFFB3
                        "
    },
    {
      "name": "Pastel Green",
      "hex_code": "
                            
                            #B3FFB3
                        "
    },
    {
      "name": "Pastel Mint",
      "hex_code": "
                            
                            #B3FFFF
                        "
    },
    {
      "name": "Pastel Purple",
      "hex_code": "
                            
                            #D1B3FF
                        "
    },
    {
      "name": "Pastel Pink",
      "hex_code": "
                            
                            #FFB3D1
                        "
    },
    {
      "name": "Pastel Peach",
      "hex_code": "
                            
                            #FFD1B3
                        "
    }
  ]
}

This pastel rainbow color scheme provides a soft and gentle aesthetic, perfect for creating a visually pleasing layout without the use of blue.

Would you like any adjustments to this palette or additional assistance with using these colors?