Вот таблица с цветами, которыми можно оформить свой текст:
IndianRed
LightCoral
Salmon
DarkSalmon
LightSalmon
Crimson   
Red
FireBrick
DarkRed
Pink
LightPink
HotPink
DeepPink
MediumVioletRed
PaleVioletRed
LightSalmon
Coral
Tomato
OrangeRed
DarkOrange
Orange
Gold
Yellow
LightYellow
LemonChiffon
LightGoldenrodYellow
PapayaWhip
Moccasin
PeachPuff
PaleGoldenrod
Khaki
DarkKhaki
Lavender
Thistle
Plum
Violet
Orchid
Fuchsia
Magenta
MediumOrchid
MediumPurple
BlueViolet
DarkViolet
DarkOrchid
DarkMagenta
Purple
Indigo
SlateBlue
DarkSlateBlue
GreenYellow
Chartreuse
LawnGreen
Lime
LimeGreen
PaleGreen
LightGreen
MediumSpringGreen
SpringGreen
MediumSeaGreen
SeaGreen
ForestGreen
Green
DarkGreen
YellowGreen
OliveDrab
Olive
DarkOliveGreen
MediumAquamarine
DarkSeaGreen
LightSeaGreen
DarkCyan
Teal
Aqua
Cyan
LightCyan
PaleTurquoise
Aquamarine
Turquoise
MediumTurquoise
DarkTurquoise
CadetBlue
SteelBlue
LightSteelBlue
PowderBlue
LightBlue
SkyBlue
LightSkyBlue
DeepSkyBlue
DodgerBlue
CornflowerBlue
MediumSlateBlue
RoyalBlue
Blue
MediumBlue
DarkBlue
Navy
MidnightBlue
Black
White - Белый

Чтобы текст был цветной, то пишите так:

[color=название цвета]Ваш текст[/color]