Color groups as described here: https://www.w3schools.com/colors/colors_groups.asp

color-groups.json

{
  "colorGroups" : [
    {
      "groupName": "Pink",
      "colors": [
        {"name": "Pink", "color": "#FFC0CB"},
        {"name": "LightPink", "color": "#FFB6C1"},
        {"name": "HotPink", "color": "#FF69B4"},
        {"name": "DeepPink", "color": "#FF1493"},
        {"name": "PaleVioletRed", "color": "#DB7093"},
        {"name": "MediumVioletRed", "color": "#C71585"}
      ]
    },
    {
      "groupName": "purple",
      "colors": [
        {"name": "Lavender", "color": "#E6E6FA"},
        {"name": "Thistle", "color": "#D8BFD8"},
        {"name": "Plum", "color": "#DDA0DD"},
        {"name": "Orchid", "color": "#DA70D6"},
        {"name": "Violet", "color": "#EE82EE"},
        {"name": "Magenta", "color": "#FF00FF"},
        {"name": "MediumOrchid", "color": "#BA55D3"},
        {"name": "DarkOrchid", "color": "#9932CC"},
        {"name": "DarkViolet", "color": "#9400D3"},
        {"name": "BlueViolet", "color": "#8A2BE2"},
        {"name": "DarkMagenta", "color": "#8B008B"},
        {"name": "Purple", "color": "#800080"},
        {"name": "MediumPurple", "color": "#9370DB"},
        {"name": "MediumSlateBlue", "color": "#7B68EE"},
        {"name": "SlateBlue", "color": "#6A5ACD"},
        {"name": "DarkSlateBlue", "color": "#483D8B"},
        {"name": "RebeccaPurple", "color": "#663399"},
        {"name": "Indigo", "color": "#4B0082"}
      ]
    },
    {
      "groupName": "red",
      "colors": [
        {"name": "LightSalmon", "color": "#FFA07A"},
        {"name": "Salmon", "color": "#FA8072"},
        {"name": "DarkSalmon", "color": "#E9967A"},
        {"name": "LightCoral", "color": "#F08080"},
        {"name": "IndianRed", "color": "#CD5C5C"},
        {"name": "Crimson", "color": "#DC143C"},
        {"name": "Red", "color": "#FF0000"},
        {"name": "FireBrick", "color": "#B22222"},
        {"name": "DarkRed", "color": "#8B0000"}
      ]
    },
    {
      "groupName": "orange",
      "colors": [
        {"name": "Orange", "color": "#FFA500"},
        {"name": "DarkOrange", "color": "#FF8C00"},
        {"name": "Coral", "color": "#FF7F50"},
        {"name": "Tomato", "color": "#FF6347"},
        {"name": "OrangeRed", "color": "#FF4500"}
      ]
    },
    {
      "groupName": "yellow",
      "colors": [
        {"name": "Gold", "color": "#FFD700"},
        {"name": "Yellow", "color": "#FFFF00"},
        {"name": "LightYellow", "color": "#FFFFE0"},
        {"name": "LemonChiffon", "color": "#FFFACD"},
        {"name": "LightGoldenRodYellow", "color": "#FAFAD2"},
        {"name": "PapayaWhip", "color": "#FFEFD5"},
        {"name": "Moccasin", "color": "#FFE4B5"},
        {"name": "PeachPuff", "color": "#FFDAB9"},
        {"name": "PaleGoldenRod", "color": "#EEE8AA"},
        {"name": "Khaki", "color": "#F0E68C"},
        {"name": "DarkKhaki", "color": "#BDB76B"}
      ]
    },
    {
      "groupName": "green",
      "colors": [
        {"name": "GreenYellow", "color": "#ADFF2F"},
        {"name": "Chartreuse", "color": "#7FFF00"},
        {"name": "LawnGreen", "color": "#7CFC00"},
        {"name": "Lime", "color": "#00FF00"},
        {"name": "LimeGreen", "color": "#32CD32"},
        {"name": "PaleGreen", "color": "#98FB98"},
        {"name": "LightGreen", "color": "#90EE90"},
        {"name": "MediumSpringGreen", "color": "#00FA9A"},
        {"name": "SpringGreen", "color": "#00FF7F"},
        {"name": "MediumSeaGreen", "color": "#3CB371"},
        {"name": "SeaGreen", "color": "#2E8B57"},
        {"name": "ForestGreen", "color": "#228B22"},
        {"name": "Green", "color": "#008000"},
        {"name": "DarkGreen", "color": "#006400"},
        {"name": "YellowGreen", "color": "#9ACD32"},
        {"name": "OliveDrab", "color": "#6B8E23"},
        {"name": "DarkOliveGreen", "color": "#556B2F"},
        {"name": "MediumAquaMarine", "color": "#66CDAA"},
        {"name": "DarkSeaGreen", "color": "#8FBC8F"},
        {"name": "LightSeaGreen", "color": "#20B2AA"},
        {"name": "DarkCyan", "color": "#008B8B"},
        {"name": "Teal", "color": "#008080"}
      ]
    },
    {
      "groupName": "cyan",
      "colors": [
        {"name": "Aqua", "color": "#00FFFF"},
        {"name": "LightCyan", "color": "#E0FFFF"},
        {"name": "PaleTurquoise", "color": "#AFEEEE"},
        {"name": "Aquamarine", "color": "#7FFFD4"},
        {"name": "Turquoise", "color": "#40E0D0"},
        {"name": "MediumTurquoise", "color": "#48D1CC"},
        {"name": "DarkTurquoise", "color": "#00CED1"}
      ]
    },
    {
      "groupName": "blue",
      "colors": [
        {"name": "CadetBlue", "color": "#5F9EA0"},
        {"name": "SteelBlue", "color": "#4682B4"},
        {"name": "LightSteelBlue", "color": "#B0C4DE"},
        {"name": "LightBlue", "color": "#ADD8E6"},
        {"name": "PowderBlue", "color": "#B0E0E6"},
        {"name": "LightSkyBlue", "color": "#87CEFA"},
        {"name": "SkyBlue", "color": "#87CEEB"},
        {"name": "CornflowerBlue", "color": "#6495ED"},
        {"name": "DeepSkyBlue", "color": "#00BFFF"},
        {"name": "DodgerBlue", "color": "#1E90FF"},
        {"name": "RoyalBlue", "color": "#4169E1"},
        {"name": "Blue", "color": "#0000FF"},
        {"name": "MediumBlue", "color": "#0000CD"},
        {"name": "DarkBlue", "color": "#00008B"},
        {"name": "Navy", "color": "#000080"},
        {"name": "MidnightBlue", "color": "#191970"}
      ]
    },
    {
      "groupName": "brown",
      "colors": [
        {"name": "Cornsilk", "color": "#FFF8DC"},
        {"name": "BlanchedAlmond", "color": "#FFEBCD"},
        {"name": "Bisque", "color": "#FFE4C4"},
        {"name": "NavajoWhite", "color": "#FFDEAD"},
        {"name": "Wheat", "color": "#F5DEB3"},
        {"name": "BurlyWood", "color": "#DEB887"},
        {"name": "Tan", "color": "#D2B48C"},
        {"name": "RosyBrown", "color": "#BC8F8F"},
        {"name": "SandyBrown", "color": "#F4A460"},
        {"name": "GoldenRod", "color": "#DAA520"},
        {"name": "DarkGoldenRod", "color": "#B8860B"},
        {"name": "Peru", "color": "#CD853F"},
        {"name": "Chocolate", "color": "#D2691E"},
        {"name": "Olive", "color": "#808000"},
        {"name": "SaddleBrown", "color": "#8B4513"},
        {"name": "Sienna", "color": "#A0522D"},
        {"name": "Brown", "color": "#A52A2A"},
        {"name": "Maroon", "color": "#800000"}
      ]
    },
    {
      "groupName": "white",
      "colors": [
        {"name": "White", "color": "#FFFFFF"},
        {"name": "Snow", "color": "#FFFAFA"},
        {"name": "HoneyDew", "color": "#F0FFF0"},
        {"name": "MintCream", "color": "#F5FFFA"},
        {"name": "Azure", "color": "#F0FFFF"},
        {"name": "AliceBlue", "color": "#F0F8FF"},
        {"name": "GhostWhite", "color": "#F8F8FF"},
        {"name": "WhiteSmoke", "color": "#F5F5F5"},
        {"name": "SeaShell", "color": "#FFF5EE"},
        {"name": "Beige", "color": "#F5F5DC"},
        {"name": "OldLace", "color": "#FDF5E6"},
        {"name": "FloralWhite", "color": "#FFFAF0"},
        {"name": "Ivory", "color": "#FFFFF0"},
        {"name": "AntiqueWhite", "color": "#FAEBD7"},
        {"name": "Linen", "color": "#FAF0E6"},
        {"name": "LavenderBlush", "color": "#FFF0F5"},
        {"name": "MistyRose", "color": "#FFE4E1"}
      ]
    },
    {
      "groupName": "grey",
      "colors": [
        {"name": "Gainsboro", "color": "#DCDCDC"},
        {"name": "LightGray", "color": "#D3D3D3"},
        {"name": "Silver", "color": "#C0C0C0"},
        {"name": "DarkGray", "color": "#A9A9A9"},
        {"name": "DimGray", "color": "#696969"},
        {"name": "Gray", "color": "#808080"},
        {"name": "LightSlateGray", "color": "#778899"},
        {"name": "SlateGray", "color": "#708090"},
        {"name": "DarkSlateGray", "color": "#2F4F4F"},
        {"name": "Black", "color": "#000000"}
      ]
    }
  ]
}