All CSS colors in one select-Element.

gistfile1.html

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