Webページを作成する際に、数値ではなく色名で指定できる色です。指定できる色の名前とそのカラー数値を紹介します。
Black
R0
G0
B0
#000000
G0
B0
#000000
Navy
R0
G0
B128
#000080
G0
B128
#000080
DarkBlue
R0
G0
B139
#00008B
G0
B139
#00008B
MediumBlue
R0
G0
B205
#0000CD
G0
B205
#0000CD
Blue
R0
G0
B255
#0000FF
G0
B255
#0000FF
DarkGreen
R0
G100
B0
#006400
G100
B0
#006400
Green
R0
G128
B0
#008000
G128
B0
#008000
Teal
R0
G128
B128
#008080
G128
B128
#008080
DarkCyan
R0
G139
B139
#008B8B
G139
B139
#008B8B
DeepSkyBlue
R0
G191
B255
#00BFFF
G191
B255
#00BFFF
DarkTurquoise
R0
G206
B209
#00CED1
G206
B209
#00CED1
MediumSpringGreen
R0
G250
B154
#00FA9A
G250
B154
#00FA9A
Lime
R0
G255
B0
#00FF00
G255
B0
#00FF00
SpringGreen
R0
G255
B127
#00FF7F
G255
B127
#00FF7F
Aqua
R0
G255
B255
#00FFFF
G255
B255
#00FFFF
Cyan
R0
G255
B255
#00FFFF
G255
B255
#00FFFF
MidnightBlue
R25
G25
B112
#191970
G25
B112
#191970
DodgerBlue
R30
G144
B255
#1E90FF
G144
B255
#1E90FF
LightSeaGreen
R32
G178
B170
#20B2AA
G178
B170
#20B2AA
ForestGreen
R34
G139
B34
#228B22
G139
B34
#228B22
SeaGreen
R46
G139
B87
#2E8B57
G139
B87
#2E8B57
DarkSlateGray
R47
G79
B79
#2F4F4F
G79
B79
#2F4F4F
LimeGreen
R50
G205
B50
#32CD32
G205
B50
#32CD32
MediumSeaGreen
R60
G179
B113
#3CB371
G179
B113
#3CB371
Turquoise
R64
G224
B208
#40E0D0
G224
B208
#40E0D0
RoyalBlue
R65
G105
B225
#4169E1
G105
B225
#4169E1
SteelBlue
R70
G130
B180
#4682B4
G130
B180
#4682B4
DarkSlateBlue
R72
G61
B139
#483D8B
G61
B139
#483D8B
MediumTurquoise
R72
G209
B204
#48D1CC
G209
B204
#48D1CC
Indigo
R75
G0
B130
#4B0082
G0
B130
#4B0082
DarkOliveGreen
R85
G107
B47
#556B2F
G107
B47
#556B2F
CadetBlue
R95
G158
B160
#5F9EA0
G158
B160
#5F9EA0
CornFlowerBlue
R100
G149
B237
#6495ED
G149
B237
#6495ED
MediumAquamarine
R102
G205
B170
#66CDAA
G205
B170
#66CDAA
DimGray
R105
G105
B105
#696969
G105
B105
#696969
SlateBlue
R106
G90
B205
#6A5ACD
G90
B205
#6A5ACD
OliveDrab
R107
G142
B35
#6B8E23
G142
B35
#6B8E23
SlateGray
R112
G128
B144
#708090
G128
B144
#708090
LightSlateGray
R119
G136
B153
#778899
G136
B153
#778899
MediumSlateBlue
R123
G104
B238
#7B68EE
G104
B238
#7B68EE
Chartreuse
R127
G255
B0
#7FFF00
G255
B0
#7FFF00
Aquamarine
R127
G255
B212
#7FFFD4
G255
B212
#7FFFD4
Maroon
R128
G0
B0
#800000
G0
B0
#800000
Purple
R128
G0
B128
#800080
G0
B128
#800080
Olive
R128
G128
B0
#808000
G128
B0
#808000
SkyBlue
R135
G206
B235
#87CEEB
G206
B235
#87CEEB
LightSkyBlue
R135
G206
B250
#87CEFA
G206
B250
#87CEFA
BlueViolet
R138
G43
B226
#8A2BE2
G43
B226
#8A2BE2
DarkRed
R139
G0
B0
#8B0000
G0
B0
#8B0000
SaddleBrown
R139
G69
B19
#8B4513
G69
B19
#8B4513
DarkSeaGreen
R143
G188
B143
#8FBC8F
G188
B143
#8FBC8F
LightGreen
R144
G238
B144
#90EE90
G238
B144
#90EE90
MediumPurple
R147
G112
B219
#9370DB
G112
B219
#9370DB
DarkViolet
R148
G0
B211
#9400D3
G0
B211
#9400D3
PaleGreen
R152
G251
B152
#98FB98
G251
B152
#98FB98
DarkOrchid
R153
G50
B204
#9932CC
G50
B204
#9932CC
YellowGreen
R154
G205
B50
#9ACD32
G205
B50
#9ACD32
Sienna
R160
G82
B45
#A0522D
G82
B45
#A0522D
AliceBlue
R160
G206
B0
#A0CE00
G206
B0
#A0CE00
Brown
R165
G42
B42
#A52A2A
G42
B42
#A52A2A
DarkGray
R169
G169
B169
#A9A9A9
G169
B169
#A9A9A9
LightBlue
R173
G216
B230
#ADD8E6
G216
B230
#ADD8E6
GreenYellow
R173
G255
B47
#ADFF2F
G255
B47
#ADFF2F
PaleTurquoise
R175
G238
B238
#AFEEEE
G238
B238
#AFEEEE
LightSteelBlue
R176
G196
B222
#B0C4DE
G196
B222
#B0C4DE
PowderBlue
R176
G224
B230
#B0E0E6
G224
B230
#B0E0E6
FireBrick
R178
G34
B34
#B22222
G34
B34
#B22222
DarkGoldenrod
R184
G134
B11
#B8860B
G134
B11
#B8860B
MediumOrchid
R186
G85
B211
#BA55D3
G85
B211
#BA55D3
RosyBrown
R188
G143
B143
#BC8F8F
G143
B143
#BC8F8F
DarkMagenta
R189
G0
B139
#BD008B
G0
B139
#BD008B
DarkKhaki
R189
G183
B107
#BDB76B
G183
B107
#BDB76B
Silver
R192
G192
B192
#C0C0C0
G192
B192
#C0C0C0
MediumVioletred
R199
G21
B133
#C71585
G21
B133
#C71585
IndianRed
R205
G92
B92
#CD5C5C
G92
B92
#CD5C5C
Chocolate
R210
G105
B30
#D2691E
G105
B30
#D2691E
LightGray
R211
G211
B211
#D3D3D3
G211
B211
#D3D3D3
Thistle
R216
G191
B219
#D8BFDB
G191
B219
#D8BFDB
Orchid
R218
G112
B214
#DA70D6
G112
B214
#DA70D6
Goldenrod
R218
G165
B32
#DAA520
G165
B32
#DAA520
PaleVioletred
R219
G112
B147
#DB7093
G112
B147
#DB7093
Crimson
R220
G20
B60
#DC143C
G20
B60
#DC143C
Gainsboro
R220
G220
B220
#DCDCDC
G220
B220
#DCDCDC
BurlyWood
R222
G184
B135
#DEB887
G184
B135
#DEB887
LightCyan
R224
G255
B255
#E0FFFF
G255
B255
#E0FFFF
Lavender
R230
G230
B250
#E6E6FA
G230
B250
#E6E6FA
DarkSalmon
R233
G150
B122
#E9967A
G150
B122
#E9967A
Violet
R238
G130
B238
#EE82EE
G130
B238
#EE82EE
PaleGoldenrod
R238
G232
B170
#EEE8AA
G232
B170
#EEE8AA
LightCoral
R240
G128
B128
#F08080
G128
B128
#F08080
Khaki
R240
G230
B140
#F0E68C
G230
B140
#F0E68C
Honeydew
R240
G255
B240
#F0FFF0
G255
B240
#F0FFF0
Azure
R240
G255
B255
#F0FFFF
G255
B255
#F0FFFF
Wheat
R245
G222
B179
#F5DEB3
G222
B179
#F5DEB3
Beige
R245
G245
B220
#F5F5DC
G245
B220
#F5F5DC
WhiteSmoke
R245
G245
B245
#F5F5F5
G245
B245
#F5F5F5
MintCream
R245
G255
B250
#F5FFFA
G255
B250
#F5FFFA
GhostWhite
R248
G248
B255
#F8F8FF
G248
B255
#F8F8FF
AntiqueWhite
R250
G235
B215
#FAEBD7
G235
B215
#FAEBD7
Linen
R250
G240
B230
#FAF0E6
G240
B230
#FAF0E6
LightGoldenrodYellow
R250
G250
B210
#FAFAD2
G250
B210
#FAFAD2
OldLace
R253
G245
B230
#FDF5E6
G245
B230
#FDF5E6
Fuchsia
R255
G0
B255
#FF00FF
G0
B255
#FF00FF
Magenta
R255
G0
B255
#FF00FF
G0
B255
#FF00FF
DeepPink
R255
G20
B147
#FF1493
G20
B147
#FF1493
OrangeRed
R255
G69
B0
#FF4500
G69
B0
#FF4500
Tomato
R255
G99
B71
#FF6347
G99
B71
#FF6347
HotPink
R255
G105
B180
#FF69B4
G105
B180
#FF69B4
Coral
R255
G127
B80
#FF7F50
G127
B80
#FF7F50
DarkOrange
R255
G140
B0
#FF8C00
G140
B0
#FF8C00
LightSalmon
R255
G160
B122
#FFA07A
G160
B122
#FFA07A
Orange
R255
G165
B0
#FFA500
G165
B0
#FFA500
LightPink
R255
G182
B193
#FFB6C1
G182
B193
#FFB6C1
Gold
R255
G215
B0
#FFD700
G215
B0
#FFD700
PeachPuff
R255
G218
B185
#FFDAB9
G218
B185
#FFDAB9
NavajoWhite
R255
G222
B173
#FFDEAD
G222
B173
#FFDEAD
Bisque
R255
G228
B196
#FFE4C4
G228
B196
#FFE4C4
MistyRose
R255
G228
B225
#FFE4E1
G228
B225
#FFE4E1
BlanchedAlmond
R255
G235
B205
#FFEBCD
G235
B205
#FFEBCD
PapayaWhip
R255
G239
B213
#FFEFD5
G239
B213
#FFEFD5
LavenderBlush
R255
G240
B245
#FFF0F5
G240
B245
#FFF0F5
SeaShell
R255
G245
B238
#FFF5EE
G245
B238
#FFF5EE
CornSilk
R255
G248
B220
#FFF8DC
G248
B220
#FFF8DC
LemonChiffon
R255
G250
B205
#FFFACD
G250
B205
#FFFACD
FloralWhite
R255
G250
B240
#FFFAF0
G250
B240
#FFFAF0
Yellow
R255
G255
B0
#FFFF00
G255
B0
#FFFF00
LightYellow
R255
G255
B224
#FFFFE0
G255
B224
#FFFFE0
Ivory
R255
G255
B240
#FFFFF0
G255
B240
#FFFFF0
White
R255
G255
B255
#FFFFFF
G255
B255
#FFFFFF
●WEBセーフカラー216色
8ビットカラー256色のうち、MacintoshとWindowsで異なる40色を除いた216色をWEBセーフカラーといいます。 可能ならばページの背景色や文字色には、WEBセーフカラーを使用してください。 WEBセーフカラーを使用すれば、表示の際に色が変換されてしまうことが少なくなり、 より多くの環境で作者の意図通りの色で表示させることができるからです。
WEBセーフカラーは、RGBの各色をそれぞれ6段階に分けて、それらの組み合わせでできる色です。 16進表記の場合は00、33、66、99、CC、FFの6段階、 0〜255の10進表記の場合は0、51、102、153、204、255の6段階、 パーセンテージ指定の場合は0%、20%、40%、60%、80%、100%の6段階の組み合わせでできる色は、全てWEBセーフカラーとなります。 6×6×6=216色です。