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

     
  
 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:

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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)

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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)

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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.

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##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