Analysis of HTML coloring principles

Color theory:

The Color Representation of HTML can be divided into two types:

Define commonly used colors, such as red. It is represented by an RGB value, for example, # ff0000 indicates red.

The naming method does not include many colors and is not very convenient, so it is rarely used. The principles of RGB values are described below:

As we all know, colors are made up of three primary colors of "red" "green" "blue". In the global security network HTML, the color is defined in hexadecimal format, for the three primary colors HTML, two hexadecimal values are defined respectively, that is, each primary color has 256 colors, so the three primary colors can be mixed into more than 16 million colors.

For example, the components of white are red = ff, Green = ff, Blue = ff, and the RGB value is ffffff. The red components are red = ff, Green = 00, Blue = 00, the RGB values are red = 00, Green = ff, Blue = 00, and RGB values are red = 00, Green = 00, blue = ff. The RGB values are red = 00, Green = 00, Blue = 00, and RGB values are 000000.

During application, the # symbol is usually added before the RGB value to show the difference, but the global security network does not support it.

■ Basic HTML architecture:

Press the button of different colors to test the foreground color effect (only suitable for Internet Explorer) press the button of different colors to test the background color effect or enter an RGB color value or name

■ 16 Commonly Used color table:

ColorValueName ColorValueName#00 ffffaqua #808080 gray #000080 navy # c0c0c0silver #000000 black #008000 green #808000 olive #008080 teal #0000 ffblue # 00ff00lime #800080 Purple # ffff00yellow # ff00fffuchsia #800000 maroon # ffw.red # ffffffwhite

■ Other common colors:

Color Value Name Color Value Name # Region # a00000antiquewith # region # f0ffffazure # region # ffe4c4bisque #000000 black # region #0000 ffblue # region # a52a2abrown # region # 7fff00chartreuse # region # ff7f50coral # region # ffffcyan #00008 bdarkblue # Highlight # Yellow #006400 darkgreen # da0000darkhaki # Yellow #9932 ccdarkorchid # 8b0000darkred # Yellow # 9400d3darkviolet # Yellow #00 percent #696969 dimgray # percent # fffaf0floralwhite # 228b22forestgreen # percent #00000 egostwhite # ffd700gold # percent #808080 gray #008000 green # adff2fgreenyellow # percent # fffff0ivory # alibaba # add8e6lightblue # f08080lightcoral # Alibaba #87 cefalightskyblue #0000 Alibaba #778899 lightslategray # Alibaba # # pipeline # faf0e6linen # ff00ffmagenta #800000 maroon #66 #0000 cdmediumblue # queue # ed1_mediumpurpul # queue #191970 midnightblue # queue # ffdeadnavajowhite #000080 navy # coding # ffa500orange # coding # cd853fperu # ffc0cbpink # dda0ddplum # coding #800080 purple # ff0000red # bc8f8frosybrown # recipe # fa8072salmon # recipe #87 ceebskyblue # recipe #708090 slategray # fffafasnow # 00ff7fspringgreen # recipe # d2b48ctan # recipe # ee82eeviolet # 00e0edvioletred # f5deb3wheat # 000e00hite # f5f5f5whitesmoke # ffff00yellow # 9acd32yellowgreen

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