Colors in CSS

RGB color values are supported by all commonly used browsers. An RGB color value can be specified with the rgb method as: rgb(red, green, blue), where the red, green and blue parameters specify the red, green and blue components of the color, respectively. Each parameter defines the intensity of the color component and may be an integer between 0 and 255 or a percentage value. Negative integers are evaluated as 0, integers greater than 255 are evaluated as 255. Negative percentage values are evaluated as 0%, percentage values greater than 100% are evaluated as 100%. For example, the rgb(0, 0, 255) value is rendered as blue, because the blue component is set to its highest value (255) and the others are set to 0. Also, the following values define the same color: rgb(255, 128, 64), rgb(100%, 50%, 25%), rgb(100%, 128, 64).

RGBA color values are an extension of RGB color values with an alpha channel that specifies the opacity of the object. An RGBA color value can be specified with the rgba method as: rgba(red, green, blue, alpha), where the alpha parameter defines the opacity. The possible values of the alpha parameter are floating point numbers between 0.0 (fully transparent) and 1.0 (fully opaque). Negative values are evaluated as 0.0, values greater than 1.0 are evaluated as 1.0.

Hue-saturation-lightness (HSL) is a cylindrical-coordinate representation of colors. An HSL color value can be specified with the hsl method as: hsl(hue, saturation, lightness), where hue is a floating point number that specifies an angle of the color circle in degrees, while saturation and lightness are percentage values. 0% saturation means a shade of gray, 100% means full saturation. 0% lightness is always black and 100% lightness is always white regardless of the hue and saturation. Negative percentage values are evaluated as 0%, percentage values greater than 100% are evaluated as 100%.

HSLA color values are an extension of HSL color values with an alpha channel that specifies the opacity of the object. An HSLA color value can be specified with the hsla method as: hsla(hue, saturation, lightness, alpha), where the alpha parameter defines the opacity. The possible values of the alpha parameter are floating point numbers between 0.0 (fully transparent) and 1.0 (fully opaque). Negative values are evaluated as 0.0, values greater than 1.0 are evaluated as 1.0.

The following table contains the predefined color names and their RGB and hexadecimal equivalents.

Color Name	RGB Value	Hexadecimal Value	Appearance
AliceBlue	rgb(240, 248, 255)	#F0F8FF
AntiqueWhite	rgb(250, 235, 215)	#FAEBD7
Aqua	rgb(0, 255, 255)	#00FFFF
Aquamarine	rgb(127, 255, 212)	#7FFFD4
Azure	rgb(240, 255, 255)	#F0FFFF
Beige	rgb(245, 245, 220)	#F5F5DC
Bisque	rgb(255, 228, 196)	#FFE4C4
Black	rgb(0, 0, 0)	#000000
BlanchedAlmond	rgb(255, 235, 205)	#FFEBCD
Blue	rgb(0, 0, 255)	#0000FF
BlueViolet	rgb(138, 43, 226)	#8A2BE2
Brown	rgb(165, 42, 42)	#A52A2A
BurlyWood	rgb(222, 184, 135)	#DEB887
CadetBlue	rgb(95, 158, 160)	#5F9EA0
Chartreuse	rgb(127, 255, 0)	#7FFF00
Chocolate	rgb(210, 105, 30)	#D2691E
Coral	rgb(255, 127, 80)	#FF7F50
CornflowerBlue	rgb(100, 149, 237)	#6495ED
Cornsilk	rgb(255, 248, 220)	#FFF8DC
Crimson	rgb(220, 20, 60)	#DC143C
Cyan	rgb(0, 255, 255)	#00FFFF
DarkBlue	rgb(0, 0, 139)	#00008B
DarkCyan	rgb(0, 139, 139)	#008B8B
DarkGoldenrod	rgb(184, 134, 11)	#B8860B
DarkGray	rgb(169, 169, 169)	#A9A9A9
DarkGreen	rgb(0, 100, 0)	#006400
DarkKhaki	rgb(189, 183, 107)	#BDB76B
DarkMagenta	rgb(139, 0, 139)	#8B008B
DarkOliveGreen	rgb(85, 107, 47)	#556B2F
DarkOrange	rgb(255, 140, 0)	#FF8C00
DarkOrchid	rgb(153, 50, 204)	#9932CC
DarkRed	rgb(139, 0, 0)	#8B0000
DarkSalmon	rgb(233, 150, 122)	#E9967A
DarkSeaGreen	rgb(143, 188, 143)	#8FBC8F
DarkSlateBlue	rgb(72, 61, 139)	#483D8B
DarkSlateGray	rgb(47, 79, 79)	#2F4F4F
DarkTurquoise	rgb(0, 206, 209)	#00CED1
DarkViolet	rgb(148, 0, 211)	#9400D3
DeepPink	rgb(255, 20, 147)	#FF1493
DeepSkyBlue	rgb(0, 191, 255)	#00BFFF
DimGray	rgb(105, 105, 105)	#696969
DodgerBlue	rgb(30, 144, 255)	#1E90FF
FireBrick	rgb(178, 34, 34)	#B22222
FloralWhite	rgb(255, 250, 240)	#FFFAF0
ForestGreen	rgb(34, 139, 34)	#228B22
Fuchsia	rgb(255, 0, 255)	#FF00FF
Gainsboro	rgb(220, 220, 220)	#DCDCDC
GhostWhite	rgb(248, 248, 255)	#F8F8FF
Gold	rgb(255, 215, 0)	#FFD700
Goldenrod	rgb(218, 165, 32)	#DAA520
Gray	rgb(128, 128, 128)	#808080
Green	rgb(0, 128, 0)	#008000
GreenYellow	rgb(173, 255, 47)	#ADFF2F
Honeydew	rgb(240, 255, 240)	#F0FFF0
HotPink	rgb(255, 105, 180)	#FF69B4
IndianRed	rgb(205, 92, 92)	#CD5C5C
Indigo	rgb(75, 0, 130)	#4B0082
Ivory	rgb(255, 255, 240)	#FFFFF0
Khaki	rgb(240, 230, 140)	#F0E68C
Lavender	rgb(230, 230, 250)	#E6E6FA
LavenderBlush	rgb(255, 240, 245)	#FFF0F5
LawnGreen	rgb(124, 252, 0)	#7CFC00
LemonChiffon	rgb(255, 250, 205)	#FFFACD
LightBlue	rgb(173, 216, 230)	#ADD8E6
LightCoral	rgb(240, 128, 128)	#F08080
LightCyan	rgb(224, 255, 255)	#E0FFFF
LightGoldenrodYellow	rgb(250, 250, 210)	#FAFAD2
LightGreen	rgb(144, 238, 144)	#90EE90
LightGrey	rgb(211, 211, 211)	#D3D3D3
LightPink	rgb(255, 182, 193)	#FFB6C1
LightSalmon	rgb(255, 160, 122)	#FFA07A
LightSeaGreen	rgb(32, 178, 170)	#20B2AA
LightSkyBlue	rgb(135, 206, 250)	#87CEFA
LightSlateGray	rgb(119, 136, 153)	#778899
LightSteelBlue	rgb(176, 196, 222)	#B0C4DE
LightYellow	rgb(255, 255, 224)	#FFFFE0
Lime	rgb(0, 255, 0)	#00FF00
LimeGreen	rgb(50, 205, 50)	#32CD32
Linen	rgb(250, 240, 230)	#FAF0E6
Magenta	rgb(255, 0, 255)	#FF00FF
Maroon	rgb(128, 0, 0)	#800000
MediumAquamarine	rgb(102, 205, 170)	#66CDAA
MediumBlue	rgb(0, 0, 205)	#0000CD
MediumOrchid	rgb(186, 85, 211)	#BA55D3
MediumPurple	rgb(147, 112, 219)	#9370DB
MediumSeaGreen	rgb(60, 179, 113)	#3CB371
MediumSlateBlue	rgb(123, 104, 238)	#7B68EE
MediumSpringGreen	rgb(0, 250, 154)	#00FA9A
MediumTurquoise	rgb(72, 209, 204)	#48D1CC
MediumVioletRed	rgb(199, 21, 133)	#C71585
MidnightBlue	rgb(25, 25, 112)	#191970
MintCream	rgb(245, 255, 250)	#F5FFFA
MistyRose	rgb(255, 228, 225)	#FFE4E1
Moccasin	rgb(255, 228, 181)	#FFE4B5
NavajoWhite	rgb(255, 222, 173)	#FFDEAD
Navy	rgb(0, 0, 128)	#000080
OldLace	rgb(253, 245, 230)	#FDF5E6
Olive	rgb(128, 128, 0)	#808000
OliveDrab	rgb(107, 142, 35)	#6B8E23
Orange	rgb(255, 165, 0)	#FFA500
OrangeRed	rgb(255, 69, 0)	#FF4500
Orchid	rgb(218, 112, 214)	#DA70D6
PaleGoldenrod	rgb(238, 232, 170)	#EEE8AA
PaleGreen	rgb(152, 251, 152)	#98FB98
PaleTurquoise	rgb(175, 238, 238)	#AFEEEE
PaleVioletRed	rgb(219, 112, 147)	#DB7093
PapayaWhip	rgb(255, 239, 213)	#FFEFD5
PeachPuff	rgb(255, 218, 185)	#FFDAB9
Peru	rgb(205, 133, 63)	#CD853F
Pink	rgb(255, 192, 203)	#FFC0CB
Plum	rgb(221, 160, 221)	#DDA0DD
PowderBlue	rgb(176, 224, 230)	#B0E0E6
Purple	rgb(128, 0, 128)	#800080
Red	rgb(255, 0, 0)	#FF0000
RosyBrown	rgb(188, 143, 143)	#BC8F8F
RoyalBlue	rgb(65, 105, 225)	#4169E1
SaddleBrown	rgb(139, 69, 19)	#8B4513
Salmon	rgb(250, 128, 114)	#FA8072
SandyBrown	rgb(244, 164, 96)	#F4A460
SeaGreen	rgb(46, 139, 87)	#2E8B57
Seashell	rgb(255, 245, 238)	#FFF5EE
Sienna	rgb(160, 82, 45)	#A0522D
Silver	rgb(192, 192, 192)	#C0C0C0
SkyBlue	rgb(135, 206, 235)	#87CEEB
SlateBlue	rgb(106, 90, 205)	#6A5ACD
SlateGray	rgb(112, 128, 144)	#708090
Snow	rgb(255, 250, 250)	#FFFAFA
SpringGreen	rgb(0, 255, 127)	#00FF7F
SteelBlue	rgb(70, 130, 180)	#4682B4
Tan	rgb(210, 180, 140)	#D2B48C
Teal	rgb(0, 128, 128)	#008080
Thistle	rgb(216, 191, 216)	#D8BFD8
Tomato	rgb(255, 99, 71)	#FF6347
Turquoise	rgb(64, 224, 208)	#40E0D0
Violet	rgb(238, 130, 238)	#EE82EE
Wheat	rgb(245, 222, 179)	#F5DEB3
White	rgb(255, 255, 255)	#FFFFFF
WhiteSmoke	rgb(245, 245, 245)	#F5F5F5
Yellow	rgb(255, 255, 0)	#FFFF00
YellowGreen	rgb(154, 205, 50)	#9ACD32

Firefox supports custom color names that are references to the currently used colors of user interface elements.

Color name	Description
-moz-activehyperlinktext	Color of the default active hyperlink color.
-moz-hyperlinktext	Color of the default hyperlink color.
-moz-visitedhyperlinktext	Color of the default visited active hyperlink color.
-moz-buttondefault	Color of the default button color.
-moz-buttonhoverface	Color of the default buttonface color.
-moz-buttonhovertext	Color of the default buttontext color.
-moz-cellhighlight	Color of the default highlighted cell color.
-moz-cellhighlighttext	Color of the default highlighted text color.
-moz-field	Color of the default field color.
-moz-fieldtext	Color of the default field's text color.
-moz-dialog	Color of the default dialog color.
-moz-dialogtext	Color of the default dialog's text color.
-moz-dragtargetzone	Color of the default targetzone color.
-moz-mac-accentdarkestshadow	Color of the default accentdarkestshadow color.
-moz-mac-accentdarkshadow	Color of the default accentdarkshadow color.
-moz-mac-accentface	Color of the default accentface color.
-moz-mac-accentlightesthighlight	Color of the default accentlightesthighlight color.
-moz-mac-accentlightshadow	Color of the default accentlightshadow color.
-moz-mac-accentregularhighlight	Color of the default accentregularhighlight color.
-moz-mac-accentregularshadow	Color of the default accentregularshadow color.
-moz-mac-focusring	Color of the default focus color.
-moz-mac-menuselect	Color of the default menuselect color.
-moz-mac-menushadow	Color of the default menu's shadow color.
-moz-mac-menutextselect	Color of the default selected menutext color.
-moz-menuhover	Color of the default hovered menu color.
-moz-menuhovertext	Color of the default hovered menu's text color.

Safari and Google Chrome support custom color names that are references to the currently used colors of user interface elements.

Color name	Description
activeborder	Color of the default active border.
activecaption	Color of the default active caption.
appworkspace	Color of the default application workspace.
background	Color of the default background.
buttonface	Color of the default button face.
buttonhighlight	Color of the default highlighted button.
buttonshadow	Color of the default button's shadow.
buttontext	Color of the default button's text.
captiontext	Color of the default caption's text.
graytext	Color of the default gray text.
highlight	Color of the default highlight.
highlighttext	Color of the default highlighted text.
inactiveborder	Color of the default inactive border.
inactivecaption	Color of the default inactive caption.
inactivecaptiontext	Color of the default caption's inactive text.
infobackground	Color of the default info's background.
infotext	Color of the default info.
match	Color match.
menu	Color of the default menu.
menutext	Color of the default menu's text.
scrollbar	Color of the default scrollbar.
threeddarkshadow	Color of the default threed's darkshadow.
threedface	Color of the default threed's face.
threedhighlight	Color of the default highlighted threed.
threedlightshadow	Color of the default threed's lightshadow.
threedshadow	Color of the default threed's shadow.
transparent	Transparent.
-webkit-activelink	Color of the default active hyperlink.
-webkit-focus-ring-color	Color of the default focus ring.
-webkit-link	Color of the default link.
-webkit-text	Color of the default text.
window	Color of the default window.
windowframe	Color of the default window's frame.
windowtext	Color of the default window's text.