All colors that you can use by word/name and don't need a code for are listed here. Along with an example of what it looks like.
Alice Blue
[color=aliceblue]Alice Blue[/color]
Antique White
[color=antiquewhite]Antique White[/color]
Aqua
[color=aqua]Aqua[/color]
Aquamarine
[color=aquamarine]Aquamarine[/color]
Azure
[color=azure]Azure[/color]
Beige
[color=beige]Beige[/color]
Bisque
[color=bisque]Bisque[/color]
Black
[color=black]Black[/color]
Blanched almond
[color=blanchedalmond]Blanched almond[/color]
Blue
[color=blue]Blue[/color]
Blue Violet
[color=blueviolet]Blue Violet[/color]
Brown
[color=brown]Brown[/color]
Burly Wood
[color=burlywood]Burly Wood[/color]
Cadet Blue
[color=cadetblue]Cadet Blue[/color]
Chartreuse
[color=chartreuse]Chartreuse[/color]
Chocolate
[color=chocolate]Chocolate[/color]
Coral
[color=coral]Coral[/color]
Cornflower Blue
[color=cornflowerblue]Cornflower Blue[/color]
Cornsilk
[color=cornsilk]Cornsilk[/color]
Crimson
[color=crimson]Crimson[/color]
Cyan
[color=cyan]Cyan[/color]
Dark Blue
[color=darkblue]Dark Blue[/color]
Dark Cyan
[color=darkcyan]Dark Cyan[/color]
Dark Goldenrod
[color=darkgoldenrod]Dark Goldenrod[/color]
Dark Gray
[color=darkgray]Dark Gray[/color]
Dark Green
[color=darkgreen]Dark Green[/color]
Dark Khaki
[color=darkkhaki]Dark Khaki[/color]
Dark Magenta
[color=darkmagenta]Dark Magenta[/color]
Dark Olive Green
[color=darkolivegreen]Dark Olive Green[/color]
Dark Orange
[color=darkorange]Dark Orange[/color]
Dark Orchid
[color=darkorchid]Dark Orchid[/color]
Dark Red
[color=darkred]Dark Red[/color]
Dark Salmon
[color=darksalmon]Dark Salmon[/color]
Dark Sea Green
[color=darkseagreen]Dark Sea Green[/color]
Dark Slate Blue
[color=darkslateblue]Dark Slate Blue[/color]
Dark Slate Gray
[color=darkslategray]Dark Slate Gray[/color]
Dark Turquoise
[color=darkturquoise]Dark Turquoise[/color]
Dark Violet
[color=darkviolet]Dark Violet[/color]
Deep Pink
[color=deeppink]Deep Pink[/color]
Deep Sky Blue
[color=deepskyblue]Deep Sky Blue[/color]
Dim Gray
[color=dimgray]Dim Gray[/color]
Dodgerblue
[color=dodgerblue]Dodgerblue[/color]
Fire Brick
[color=firebrick]Fire Brick[/color]
Floral White
[color=floralwhite]Floral White[/color]
Forest Green
[color=forestgreen]Forest Green[/color]
Fuchsia
[color=fuchsia]Fuchsia[/color]
Gainsboro
[color=gainsboro]Gainsboro[/color]
Ghost White
[color=ghostwhite]Ghost White[/color]
Gold
[color=gold]Gold[/color]
Goldenrod
[color=goldenrod]Goldenrod[/color]
Gray
[color=gray]Gray[/color]
Green
[color=green]Green[/color]
Green Yellow
[color=greenyellow]Green Yellow[/color]
Honeydew
[color=honeydew]Honeydew[/color]
Hot Pink
[color=hotpink]Hot Pink[/color]
Indian Red
[color=indianred]Indian Red[/color]
Indigo
[color=indigo]Indigo[/color]
Ivory
[color=ivory]Ivory[/color]
Khaki
[color=khaki]Khaki[/color]
Lavender
[color=lavender]Lavender[/color]
Lavender Blush
[color=lavenderblush]Lavender Blush[/color]
Lawn Green
[color=lawngreen]Lawn Green[/color]
Lemon Chiffon
[color=lemonchiffon]Lemon Chiffon[/color]
Light Blue
[color=lightblue]Light Blue[/color]
Light Coral
[color=lightcoral]Light Coral[/color]
Light Cyan
[color=lightcyan]Light Cyan[/color]
Light Goldenrod Yellow
[color=lightgoldenrodyellow]Light Goldenrod Yellow[/color]
Light Green
[color=lightgreen]Light Green[/color]
Light Grey
[color=lightgrey]Light Grey[/color]
Light Pink
[color=lightpink]Light Pink[/color]
Light Salmon
[color=lightsalmon]Light Salmon[/color]
Light Sea Green
[color=lightseagreen]Light Sea Green[/color]
Light Sky Blue
[color=lightskyblue]Light Sky Blue[/color]
Light Slate Gray
[color=lightslategray]Light Slate Gray[/color]
Light Steel Blue
[color=lightsteelblue]Light Steel Blue[/color]
Light Yellow
[color=lightyellow]Light Yellow[/color]
Lime
[color=lime]Lime[/color]
Lime Green
[color=limegreen]Lime Green[/color]
Linen
[color=linen]Linen[/color]
Magenta
[color=magenta]Magenta[/color]
Maroon
[color=maroon]Maroon[/color]
Medium Aquamarine
[color=mediumauqamarine]Medium Aquamarine[/color]
Medium Blue
[color=mediumblue]Medium Blue[/color]
Medium Orchid
[color=mediumorchid]Medium Orchid[/color]
Medium Purple
[color=mediumpurple]Medium Purple[/color]
Medium Sea Green
[color=mediumseagreen]Medium Sea Green[/color]
Medium Slate Blue
[color=mediumslateblue]Medium Slate Blue[/color]
Medium Spring Green
[color=mediumspringgreen]Medium Spring Green[/color]
Medium Turquoise
[color=mediumturquoise]Medium Turquoise[/color]
Medium Violet Red
[color=mediumvioletred]Medium Violet Red[/color]
Midnight Blue
[color=midnightblue]Midnight Blue[/color]
Mint Cream
[color=mintcream]Mint Cream[/color]
Misty Rose
[color=mistyrose]Misty Rose[/color]
Moccasin
[color=moccasin]Moccasin[/color]
Navajo White
[color=navajowhite]Navajo White[/color]
Navy
[color=navy]Navy[/color]
Old Lace
[color=oldlace]Old Lace[/color]
Olive
[color=olive]Olive[/color]
Olive Drab
[color=olivedrab]Olive Drab[/color]
Orange
[color=orange]Orange[/color]
Orange Red
[color=orangered]Orange Red[/color]
Orchid
[color=orchid]Orchid[/color]
Pale Goldenrod
[color=palegoldenrod]Pale Goldenrod[/color]
Pale Green
[color=palegreen]Pale Green[/color]
Pale Turquoise
[color=paleturquoise]Pale Turquoise[/color]
Pale Violet Red
[color=palevioletred]Pale Violet Red[/color]
Papaya Whip
[color=papayawhip]Papaya Whip[/color]
Peach Puff
[color=peachpuff]Peach Puff[/color]
Peru
[color=peru]Peru[/color]
Pink
[color=pink]Pink[/color]
Plum
[color=plum]Plum[/color]
Powder Blue
[color=powderblue]Powder Blue[/color]
Purple
[color=purple]Purple[/color]
Red
[color=red]Red[/color]
Rosy Brown
[color=rosybrown]Rosy Brown[/color]
Royal Blue
[color=royalblue]Royal Blue[/color]
Saddle Brown
[color=saddlebrown]Saddle Brown[/color]
Salmon
[color=salmon]Salmon[/color]
Sandy Brown
[color=sandybrown]Sandy Brown[/color]
Sea Green
[color=seagreen]Sea Green[/color]
Seashell
[color=seashell]Seashell[/color]
Sienna
[color=sienna]Sienna[/color]
Silver
[color=silver]Silver[/color]
Sky Blue
[color=skyblue]Sky Blue[/color]
Slate Blue
[color=slateblue]Slate Blue[/color]
Slate Gray
[color=slategray]Slate Gray[/color]
Snow
[color=snow]Snow[/color]
Spring Green
[color=springgreen]Spring Green[/color]
Steel Blue
[color=steelblue]Steel Blue[/color]
Tan
[color=tan]Tan[/color]
Teal
[color=teal]Teal[/color]
Thistle
[color=thistle]Thistle[/color]
Tomato
[color=tomato]Tomato[/color]
Turquoise
[color=turquoise]Turquoise[/color]
Violet
[color=violet]Violet[/color]
Wheat
[color=wheat]Wheat[/color]
White
[color=white]White[/color]
White Smoke
[color=whitesmoke]White Smoke[/color]
Yellow
[color=yellow]Yellow[/color]
Yellow Green
[color=yellowgreen]Yellow Green[/color]