Here’s a color palette inspired by a gym theme featuring black and yellow:

json
{
  "palette_name": "Gym Power",
  "colors": [
    {
      "name": "Black",
      "hex_code": "
          
          #000000
       "
    },
    {
      "name": "Yellow",
      "hex_code": "
          
          #FFD700
       "
    },
    {
      "name": "Dark Gray",
      "hex_code": "
          
          #A9A9A9
       "
    },
    {
      "name": "Bright Yellow",
      "hex_code": "
          
          #FFEA00
       "
    },
    {
      "name": "Charcoal",
      "hex_code": "
          
          #333333
       "
    }
  ]
}

This palette combines the strength of black with the energy of yellow, suitable for a gym atmosphere. Would you like any additional colors or variations for this palette?