Web Colors - A quick reference guide to the original 216 web colors

These 216 colors have a special place in computer history.
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Computers use Red, Green, and Blue as primary colors in order to display all other colors. In the early days of digital displays, there was a very limited amount of colors that could be shown. Computers were limited to 8-bit color, which gave a maximum of 256 different values (2^8 = 256). If we take our 8-bit color limitation of 256 and find the cube root for our 3 primary colors, we get 6.349... If we take this cube root and reduce it to a whole number, we get 6. This means that on an 8-bit color display, we can have 6 different values (including 0) for Red, Green, or Blue. This gives us 216 color combinations (6^3 = 216) that would be safe for an 8-bit display. These 216 colors became the standard for computer graphics and web browsers.

Computers use hexadecimal color codes to identify each color, such as #FF9933. The first two digits show the Red value, the next two show the Green value, and the last two show the Blue value. This means that pure Red would be #FF0000, pure Green would be #00FF00, and pure Blue would be #0000FF.

Color strength:
00 = 0%
33 = 20%
66 = 40%
99 = 60%
CC = 80%
FF = 100%

Today, colors are displayed using a 24-bit system, which can show over 16 million different colors (2^24 = 16,777,216).

All 216 web colors in alphabetical order:

#000000

#000033

#000066

#000099

#0000CC

#0000FF

#003300

#003333

#003366

#003399

#0033CC

#0033FF

#006600

#006633

#006666

#006699

#0066CC

#0066FF

#009900

#009933

#009966

#009999

#0099CC

#0099FF

#00CC00

#00CC33

#00CC66

#00CC99

#00CCCC

#00CCFF

#00FF00

#00FF33

#00FF66

#00FF99

#00FFCC

#00FFFF

#330000

#330033

#330066

#330099

#3300CC

#3300FF

#333300

#333333

#333366

#333399

#3333CC

#3333FF

#336600

#336633

#336666

#336699

#3366CC

#3366FF

#339900

#339933

#339966

#339999

#3399CC

#3399FF

#33CC00

#33CC33

#33CC66

#33CC99

#33CCCC

#33CCFF

#33FF00

#33FF33

#33FF66

#33FF99

#33FFCC

#33FFFF

#660000

#660033

#660066

#660099

#6600CC

#6600FF

#663300

#663333

#663366

#663399

#6633CC

#6633FF

#666600

#666633

#666666

#666699

#6666CC

#6666FF

#669900

#669933

#669966

#669999

#6699CC

#6699FF

#66CC00

#66CC33

#66CC66

#66CC99

#66CCCC

#66CCFF

#66FF00

#66FF33

#66FF66

#66FF99

#66FFCC

#66FFFF

#990000

#990033

#990066

#990099

#9900CC

#9900FF

#993300

#993333

#993366

#993399

#9933CC

#9933FF

#996600

#996633

#996666

#996699

#9966CC

#9966FF

#999900

#999933

#999966

#999999

#9999CC

#9999FF

#99CC00

#99CC33

#99CC66

#99CC99

#99CCCC

#99CCFF

#99FF00

#99FF33

#99FF66

#99FF99

#99FFCC

#99FFFF

#CC0000

#CC0033

#CC0066

#CC0099

#CC00CC

#CC00FF

#CC3300

#CC3333

#CC3366

#CC3399

#CC33CC

#CC33FF

#CC6600

#CC6633

#CC6666

#CC6699

#CC66CC

#CC66FF

#CC9900

#CC9933

#CC9966

#CC9999

#CC99CC

#CC99FF

#CCCC00

#CCCC33

#CCCC66

#CCCC99

#CCCCCC

#CCCCFF

#CCFF00

#CCFF33

#CCFF66

#CCFF99

#CCFFCC

#CCFFFF

#FF0000

#FF0033

#FF0066

#FF0099

#FF00CC

#FF00FF

#FF3300

#FF3333

#FF3366

#FF3399

#FF33CC

#FF33FF

#FF6600

#FF6633

#FF6666

#FF6699

#FF66CC

#FF66FF

#FF9900

#FF9933

#FF9966

#FF9999

#FF99CC

#FF99FF

#FFCC00

#FFCC33

#FFCC66

#FFCC99

#FFCCCC

#FFCCFF

#FFFF00

#FFFF33

#FFFF66

#FFFF99

#FFFFCC

#FFFFFF