HTML color

The color is a mixture of red, green and blue.

Color Values

Colors are defined by a hexadecimal notation consisting of red, green and blue values ( RGB).

The minimum value for each color is 0 (hex: #00). The maximum value is 255 (hex: #FF).

For some of the most commonly used colors (such as white, black, red, blue, green and yellow, etc.), you can also use their English names

This table gives the three The specific effect of mixing two colors:


# #0000FF rgb(0,0,255)
ColorColor Color HEX Color RGB

#000000 rgb(0,0,0)

#FF0000 rgb(255,0,0)

00FF00 rgb(0,255,0)


#FFFF00 rgb(255,255,0)

#00FFFF rgb(0,255,255)

#FF00FF rgb(255,0,255)

#C0C0C0 rgb(192,192,192)

#FFFFFF rgb(255,255,255)

Example

    php中文网(php.cn) 

通过十六进制设置背景颜色

通过 rbg 值设置背景颜色

通过颜色名设置背景颜色

Program running result:

1.jpg


16 million different colors

The combination of three colors red, green and blue ranges from 0 to 255, a total of 16 million different colors (256 x 256 x 256).

In the color table below you will see different results, from 0 to 255 red (part), while setting the green and blue values to 0, as the red value changes, different Values are shown in different colors.


Red Light Color HEX Color RGB

#000000 rgb(0,0,0)

#100000 rgb(16,0,0)

#200000 rgb(32,0,0)

#300000 rgb(48,0,0)

#400000 rgb(64,0,0)

#500000 rgb(80,0,0)

#600000 rgb(96,0,0)

#700000 rgb(112,0,0)

#800000 rgb(128,0,0)

#900000 rgb(144,0,0)

#A00000 rgb(160,0,0)

#B00000 rgb(176,0,0)

#C00000 rgb(192,0,0)

#D80000 rgb(216,0,0)

#E80000 rgb(232,0,0)

#F00000 rgb(240,0,0)

#F80000 rgb(248,0,0)

#FF0000 rgb(255,0,0)

Gray tones

The following shows a gray to black gradient (part)


Gray Shades Color HEX Color RGB
#000000 rgb(0,0,0)

#080808 rgb(8,8,8)

#181818 rgb(24,24,24)

#202020 rgb(32,32,32)

#303030 rgb(48,48,48)

#404040 rgb(64,64,64)

#484848 rgb(72,72,72)

#585858 rgb(88,88,88)

#686868 rgb(104,104,104)

#787878 rgb(120,120,120)

#808080 rgb(128,128,128)

#909090 rgb(144,144,144)

#A0A0A0 rgb(160,160,160)

#B0B0B0 rgb(176,176,176)

#C8C8C8 rgb(200,200,200)

#D8D8D8 rgb(216,216,216)

#F0F0F0 rgb(240,240,240)

#F8F8F8 rgb(248,248,248)

#FFFFFF rgb(255,255,255)

Web-safe colors?

A few years ago, when most computers supported only 256 colors, a series of 216 Web-safe colors Color is recommended as a Web standard. The reason for this is that Microsoft and Mac operating systems use 40 different reserved fixed system colors (approximately 20 each).

We're not sure how meaningful this is nowadays, as more and more computers are capable of processing millions of colors, but the choice is yours.

Initially, 216 cross-platform web-safe colors were used to ensure that all computers could display all colors correctly when using a 256-color palette.

8.jpg


##HTML color name and color value

Color by red Composed of (R), green (G), and blue (B).

141 color names are defined in the HTML and CSS color specifications (17 standard colors, plus 124 more).

Color values are expressed in hexadecimal as red, green, and blue (RGB).

The lowest value of each color is 0 (00 in hex) and the highest value is 255 (FF in hex).

The hexadecimal value is written as a # followed by three or six hexadecimal characters.

Three-digit representation is: #RGB, converted to 6-digit representation: #RRGGBB.

Tips: 17 standard colors: black, blue, aqua, fuchsia, gray, green, lime, maroon, navy, olive, orange, purple, red, white, silver, Blue-green, yellow.

The following table lists the values of some colors, including hexadecimal values.

## Black #000000 Navy #000080 # DarkBlue ## MediumBlue #0000CD
Color name Hexadecimal color value Color


#00008B

Blue #0000FF
DarkGreen #006400
Green #008000
Teal #008080
DarkCyan #008B8B
DeepSkyBlue #00BFFF
DarkTurquoise #00CED1
MediumSpringGreen #00FA9A
Lime #00FF00
SpringGreen #00FF7F
Aqua #00FFFF
Cyan #00FFFF
MidnightBlue #191970
DodgerBlue #1E90FF
LightSeaGreen #20B2AA
ForestGreen #228B22
SeaGreen #2E8B57
DarkSlateGray #2F4F4F
LimeGreen #32CD32
MediumSeaGreen #3CB371
Turquoise #40E0D0
RoyalBlue #4169E1
SteelBlue #4682B4
DarkSlateBlue #483D8B
MediumTurquoise #48D1CC
Indigo #4B0082
DarkOliveGreen #556B2F
CadetBlue #5F9EA0
CornflowerBlue #6495ED
MediumAquaMarine #66CDAA
DimGray #696969
SlateBlue #6A5ACD
OliveDrab #6B8E23
SlateGray #708090
LightSlateGray #778899
MediumSlateBlue #7B68EE
LawnGreen #7CFC00
Chartreuse #7FFF00
Aquamarine #7FFFD4
Maroon #800000


Continuing Learning
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php中文网(php.cn)

通过十六进制设置背景颜色

通过 rbg 值设置背景颜色

通过颜色名设置背景颜色

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