JavaScript
//source: https://simple.wikipedia.org/wiki/List_of_colors
const colorNames = [
'Amaranth',
'Amber',
'Amethyst',
'Apricot',
'Aquamarine',
'Azure',
'Baby blue',
'Beige',
'Brick red',
'Black',
'Blue',
'Blue-green',
'Blue-violet',
'Blush',
'Bronze',
'Brown',
'Burgundy',
'Byzantium',
'Carmine',
'Cerise',
'Cerulean',
'Champagne',
'Chartreuse green',
'Chocolate',
'Cobalt blue',
'Coffee',
'Copper',
'Coral',
'Crimson',
'Cyan',
'Desert sand',
'Electric blue',
'Emerald',
'Erin',
'Gold',
'Gray',
'Green',
'Harlequin',
'Indigo',
'Ivory',
'Jade',
'Jungle green',
'Lavender',
'Lemon',
'Lilac',
'Lime',
'Magenta',
'Magenta rose',
'Maroon',
'Mauve',
'Navy blue',
'Ochre',
'Olive',
'Orange',
'Orange-red',
'Orchid',
'Peach',
'Pear',
'Periwinkle',
'Persian blue',
'Pink',
'Plum',
'Prussian blue',
'Puce',
'Purple',
'Raspberry',
'Red',
'Red-violet',
'Rose',
'Ruby',
'Salmon',
'Sangria',
'Sapphire',
'Scarlet',
'Silver',
'Slate gray',
'Spring bud',
'Spring green',
'Tan',
'Taupe',
'Teal',
'Turquoise',
'Ultramarine',
'Violet',
'Viridian',
'White',
'Yellow'
];
//source: https://gist.github.com/bobspace/2712980
const cssColorNames = [
"AliceBlue",
"AntiqueWhite",
"Aqua",
"Aquamarine",
"Azure",
"Beige",
"Bisque",
"Black",
"BlanchedAlmond",
"Blue",
"BlueViolet",
"Brown",
"BurlyWood",
"CadetBlue",
"Chartreuse",
"Chocolate",
"Coral",
"CornflowerBlue",
"Cornsilk",
"Crimson",
"Cyan",
"DarkBlue",
"DarkCyan",
"DarkGoldenRod",
"DarkGray",
"DarkGrey",
"DarkGreen",
"DarkKhaki",
"DarkMagenta",
"DarkOliveGreen",
"DarkOrange",
"DarkOrchid",
"DarkRed",
"DarkSalmon",
"DarkSeaGreen",
"DarkSlateBlue",
"DarkSlateGray",
"DarkSlateGrey",
"DarkTurquoise",
"DarkViolet",
"DeepPink",
"DeepSkyBlue",
"DimGray",
"DimGrey",
"DodgerBlue",
"FireBrick",
"FloralWhite",
"ForestGreen",
"Fuchsia",
"Gainsboro",
"GhostWhite",
"Gold",
"GoldenRod",
"Gray",
"Grey",
"Green",
"GreenYellow",
"HoneyDew",
"HotPink",
...