Here is a revised color palette inspired by Vision Zero NYC, but with a more muted and softer tone to achieve a less bright appearance.

json
{
  "palette_name": "Vision Zero NYC Soft",
  "colors": [
    {
      "name": "Muted Yellow",
      "hex_code": "
          
          #D5D200
       "
    },
    {
      "name": "Gentle Blue",
      "hex_code": "
          
          #A0C3E8
       "
    },
    {
      "name": "Soft Grey",
      "hex_code": "
          
          #B0B3B0
       "
    },
    {
      "name": "Calm Red",
      "hex_code": "
          
          #D05A00
       "
    },
    {
      "name": "Subtle Green",
      "hex_code": "
          
          #A8D8B9
       "
    }
  ]
}

The “Vision Zero NYC Soft” palette maintains the essence of urban safety while offering softer, more muted colors that create a calm and approachable atmosphere.

Would you like any further adjustments or have other themes in mind?