code: # GH37967: Enable the use of CSS named colors, as defined in
  # matplotlib.colors.CSS4_COLORS, when exporting to Excel.
  # This data has been copied here, instead of being imported from matplotlib,
  # not to have ``to_excel`` methods require matplotlib.
  # source: matplotlib._color_data (3.3.3)
  CSS4_COLORS = {
      "aliceblue": "F0F8FF",
      "antiquewhite": "FAEBD7",
      "aqua": "00FFFF",
      "aquamarine": "7FFFD4",
      "azure": "F0FFFF",
      "beige": "F5F5DC",
      "bisque": "FFE4C4",
      "black": "000000",
      "blanchedalmond": "FFEBCD",
      "blue": "0000FF",
      "blueviolet": "8A2BE2",
      "brown": "A52A2A",
      "burlywood": "DEB887",
      "cadetblue": "5F9EA0",
      "chartreuse": "7FFF00",
      "chocolate": "D2691E",
      "coral": "FF7F50",
      "cornflowerblue": "6495ED",
      "cornsilk": "FFF8DC",
      "crimson": "DC143C",
      "cyan": "00FFFF",
      "darkblue": "00008B",
      "darkcyan": "008B8B",
      "darkgoldenrod": "B8860B",
      "darkgray": "A9A9A9",
      "darkgreen": "006400",
      "darkgrey": "A9A9A9",
      "darkkhaki": "BDB76B",
      "darkmagenta": "8B008B",
      "darkolivegreen": "556B2F",
      "darkorange": "FF8C00",
      "darkorchid": "9932CC",
      "darkred": "8B0000",
      "darksalmon": "E9967A",
      "darkseagreen": "8FBC8F",
      "darkslateblue": "483D8B",
      "darkslategray": "2F4F4F",
      "darkslategrey": "2F4F4F",
      "darkturquoise": "00CED1",
      "darkviolet": "9400D3",
      "deeppink": "FF1493",
      "deepskyblue": "00BFFF",
      "dimgray": "696969",
      "dimgrey": "696969",
      "dodgerblue": "1E90FF",
      "firebrick": "B22222",
      "floralwhite": "FFFAF0",
      "forestgreen": "228B22",
      "fuchsia": "FF00FF",
      "gainsboro": "DCDCDC",
      "ghostwhite": "F8F8FF",
      "gold": "FFD700",
      "goldenrod": "DAA520",
      "gray": "808080",
      "green": "008000",
      "greenyellow": "ADFF2F",
      "grey": "808080",
      "honeydew": "F0FFF0",
      "hotpink": "FF69B4",
      "indianred": "CD5C5C",
      "indigo": "4B0082",
      "ivory": "FFFFF0",
      "khaki": "F0E68C",
      "lavender": "E6E6FA",
      "lavenderblush": "FFF0F5",
      "lawngreen": "7CFC00",
      "lemonchiffon": "FFFACD",
      "lightblue": "ADD8E6",
      "lightcoral": "F08080",
      "lightcyan": "E0FFFF",
      "lightgoldenrodyellow": "FAFAD2",
      "lightgray": "D3D3D3",
      "lightgreen": "90EE90",
      "lightgrey": "D3D3D3",
      "lightpink": "FFB6C1",
      "lightsalmon": "FFA07A",
      "lightseagreen": "20B2AA",
      "lightskyblue": "87CEFA",
      "lightslategray": "778899",
      "lightslategrey": "778899",
      "lightsteelblue": "B0C4DE",
      "lightyellow": "FFFFE0",
      "lime": "00FF00",
      "limegreen": "32CD32",
      "linen": "FAF0E6",
      "magenta": "FF00FF",
      "maroon": "800000",
      "mediumaquamarine": "66CDAA",
      "mediumblue": "0000CD",
      "mediumorchid": "BA55D3",
      "mediumpurple": "9370DB",
      "mediumseagreen": "3CB371",
      "mediumslateblue": "7B68EE",
      "mediumspringgreen": "00FA9A",
      "mediumturquoise": "48D1CC",
      "mediumvioletred": "C71585",
      "midnightblue": "191970",
      "mintcream": "F5FFFA",
      "mistyrose": "FFE4E1",
      "moccasin": "FFE4B5",
      "navajowhite": "FFDEAD",
      "navy": "000080",
      "oldlace": "FDF5E6",
      "olive": "808000",
      "olivedrab": "6B8E23",
      "orange": "FFA500",
      "orangered": "FF4500",
      "orchid": "DA70D6",
      "palegoldenrod": "EEE8AA",
      "palegreen": "98FB98",
      "paleturquoise": "AFEEEE",
      "palevioletred": "DB7093",
      "papayawhip": "FFEFD5",
      "peachpuff": "FFDAB9",
      "peru": "CD853F",
      "pink": "FFC0CB",
      "plum": "DDA0DD",
      "powderblue": "B0E0E6",
      "purple": "800080",
      "rebeccapurple": "663399",
      "red": "FF0000",
      "rosybrown": "BC8F8F",
      "royalblue": "4169E1",
      "saddlebrown": "8B4513",
      "salmon": "FA8072",
      "sandybrown": "F4A460",
      "seagreen": "2E8B57",
      "seashell": "FFF5EE",
      "sienna": "A0522D",
      "silver": "C0C0C0",
      "skyblue": "87CEEB",
      "slateblue": "6A5ACD",
      "slategray": "708090",
      "slategrey": "708090",
      "snow": "FFFAFA",
      "springgreen": "00FF7F",
      "steelblue": "4682B4",
      "tan": "D2B48C",
      "teal": "008080",
      "thistle": "D8BFD8",
      "tomato": "FF6347",
      "turquoise": "40E0D0",
      "violet": "EE82EE",
      "wheat": "F5DEB3",
      "white": "FFFFFF",
      "whitesmoke": "F5F5F5",
      "yellow": "FFFF00",
      "yellowgreen": "9ACD32",
  }
  