Aquí os dejamos una lista de colores que podréis usar en vuestros posts normales. También existen páginas en donde hay bastante más colores o mismamente, cuando le dais a hacer un post en la parte derecha os aparece una tabla con unos cuantos.
whitesmoke
gainsboro
lightgrey
silver
darkgray
gray
dimgray
lightsteelblue
navyblue
lightslategray
slategray
steelblue
royalblue
cornflowerblue
mediumslateblue
lightslateblue
slateblue
darkslateblue
navy
darkblue
MediumBlue
Blue
Dodgerblue
DeepSkyBlue
SkyBlue
LightSkyBlue
PowderBlue
LightCyan
PaleTurquoise
MediumTurquoise
LightSeaGreen
DarckCyan
Teal
CadetBlue
Aqua
Cyan
DarkTurquoise
Turquoise
Aquamarine
MediumAquamarine
DarkSeaGreen
MediumSeaGreen
SeaGreen
DarkGreen
DarkOliveGreen
Olive
Green
ForestGreen
OliveDrab
LimeGreen
YellowGreen
Lime
Chartreuse
LawnGreen
GreenYellow
PaleGreen
LightGreen
SpringGreen
MediumSpringGreen
DarkKhaki
Gold
Khaki
PaleGoldenrod
BlanchedAlmond
Moccasin
Wheat
NavajoWhite
SandyBrown
Tan
Burlywood
GoldenRod
Yellow
RosyBrown
DarkGoldenrod
Sienna
SaddleBrown
Chocolate
Peru
DarkRed
Maroon
Brown
Firebrick
orange
IndianRed
LightCoral
Salmon
DarkSalmon
LightSalmon
Coral
Tomato
DarkOrange
OrangeRed
Crimson
Red
DeepPink
Magenta
Fuchsia
HotPink
Pink
LightPink
MediumOrchid
PaleVioletRed
Purple
MediumVioletRed
DarkMagenta
MediumPurple
BlueViolet
indigo
darkviolet
darkorchid
orchid
violet
Plum
thistle
lavender
ghostwhite
aliceblue
mintcream
honeydew
LightGoldenrodYellow
LemonChiffon
Cornsilk
Ivory
FloralWhite
Linen
OldLace
AntiqueWhite
Bisque
PeachPuff
Beige
PapayaWhip
Seashell
LavenderBlush
Snow
whitesmoke
gainsboro
lightgrey
silver
darkgray
gray
dimgray
lightsteelblue
navyblue
lightslategray
slategray
steelblue
royalblue
cornflowerblue
mediumslateblue
lightslateblue
slateblue
darkslateblue
navy
darkblue
MediumBlue
Blue
Dodgerblue
DeepSkyBlue
SkyBlue
LightSkyBlue
PowderBlue
LightCyan
PaleTurquoise
MediumTurquoise
LightSeaGreen
DarckCyan
Teal
CadetBlue
Aqua
Cyan
DarkTurquoise
Turquoise
Aquamarine
MediumAquamarine
DarkSeaGreen
MediumSeaGreen
SeaGreen
DarkGreen
DarkOliveGreen
Olive
Green
ForestGreen
OliveDrab
LimeGreen
YellowGreen
Lime
Chartreuse
LawnGreen
GreenYellow
PaleGreen
LightGreen
SpringGreen
MediumSpringGreen
DarkKhaki
Gold
Khaki
PaleGoldenrod
BlanchedAlmond
Moccasin
Wheat
NavajoWhite
SandyBrown
Tan
Burlywood
GoldenRod
Yellow
RosyBrown
DarkGoldenrod
Sienna
SaddleBrown
Chocolate
Peru
DarkRed
Maroon
Brown
Firebrick
orange
IndianRed
LightCoral
Salmon
DarkSalmon
LightSalmon
Coral
Tomato
DarkOrange
OrangeRed
Crimson
Red
DeepPink
Magenta
Fuchsia
HotPink
Pink
LightPink
MediumOrchid
PaleVioletRed
Purple
MediumVioletRed
DarkMagenta
MediumPurple
BlueViolet
indigo
darkviolet
darkorchid
orchid
violet
Plum
thistle
lavender
ghostwhite
aliceblue
mintcream
honeydew
LightGoldenrodYellow
LemonChiffon
Cornsilk
Ivory
FloralWhite
Linen
OldLace
AntiqueWhite
Bisque
PeachPuff
Beige
PapayaWhip
Seashell
LavenderBlush
Snow