Based on the theme “Under a tropical sea, no fish,” here’s a color palette that reflects the tranquil and vibrant hues of a tropical underwater environment, with an emphasis on the colors of the water, corals, and sand.

json
{
  "palette_name": "Tropical Underwater Serenity",
  "colors": [
    {
      "name": "Coral Reef",
      "hex_code": "
                            
                            #FF6F61
                        "
    },
    {
      "name": "Ocean Blue",
      "hex_code": "
                            
                            #007BFF
                        "
    },
    {
      "name": "Seafoam Green",
      "hex_code": "
                            
                            #2ED573
                        "
    },
    {
      "name": "Sandy Beige",
      "hex_code": "
                            
                            #F5E1A5
                        "
    },
    {
      "name": "Deep Sea Navy",
      "hex_code": "
                            
                            #001F3F
                        "
    }
  ]
}

This palette captures the essence of a tropical sea with vibrant coral tones, deep ocean blues, refreshing seafoam greens, gentle sandy shades, and the depth of the navy sea.

Would you like to explore more about how to use these colors in design or any other specific applications?