https://www.w3schools.com/css/css_colors.asp
Colors are specified using predefined color names, or RGB, HEX, HSL, RGBA, HSLA values.
CSS Color Names
In CSS, a color can be specified by using a predefined color name:
<!DOCTYPE html> <html> <body> <h1 style="background-color:Tomato;">Tomato</h1> <h1 style="background-color:Orange;">Orange</h1> <h1 style="background-color:DodgerBlue;">DodgerBlue</h1> <h1 style="background-color:MediumSeaGreen;">MediumSeaGreen</h1> <h1 style="background-color:Gray;">Gray</h1> <h1 style="background-color:SlateBlue;">SlateBlue</h1> <h1 style="background-color:Violet;">Violet</h1> <h1 style="background-color:LightGray;">LightGray</h1> </body> </html>
CSS/HTML support 140 standard color names.
CSS Background Color
You can set the background color for HTML elements:
<!DOCTYPE html> <html> <body> <h1 style="background-color:DodgerBlue;">Hello World</h1> <p style="background-color:Tomato;"> Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. </p> </body> </html>
Example
<h1 style="">Hello World</h1><p style="">Lorem ipsum...</p>
CSS Text Color
You can set the color of text:
Hello World
Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.
Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.
Example
<h1 style="color:Tomato;">Hello World</h1><p style="color:DodgerBlue;">Lorem ipsum...</p>
<p style="color:MediumSeaGreen;">Ut wisi enim...</p>
<!DOCTYPE html> <html> <body> <h3 style="color:Tomato;">Hello World</h3> <p style="color:DodgerBlue;">Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat.</p> <p style="color:MediumSeaGreen;">Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.</p> </body> </html>
CSS Border Color
You can set the color of borders:
Hello World
Hello World
Hello World
Example
<h1 style="border:2px solid Tomato;">Hello World</h1><h1 style="border:2px solid DodgerBlue;">Hello World</h1>
<h1 style="border:2px solid Violet;">Hello World</h1>
<!DOCTYPE html> <html> <body> <h1 style="border: 2px solid Tomato;">Hello World</h1> <h1 style="border: 2px solid DodgerBlue;">Hello World</h1> <h1 style="border: 2px solid Violet;">Hello World</h1> </body> </html>
CSS Color Values
In CSS, colors can also be specified using RGB values, HEX values, HSL values, RGBA values, and HSLA values:
Same as color name "Tomato":
Same as color name "Tomato", but 50% transparent:
Example
<!DOCTYPE html> <html> <body> <p>Same as color name "Tomato":</p> <h1 style="background-color:rgb(255, 99, 71);">rgb(255, 99, 71)</h1> <h1 style="background-color:#ff6347;">#ff6347</h1> <h1 style="background-color:hsl(9, 100%, 64%);">hsl(9, 100%, 64%)</h1> <p>Same as color name "Tomato", but 50% transparent:</p> <h1 style="background-color:rgba(255, 99, 71, 0.5);">rgba(255, 99, 71, 0.5)</h1> <h1 style="background-color:hsla(9, 100%, 64%, 0.5);">hsla(9, 100%, 64%, 0.5)</h1> <p>In addition to the predefined color names, colors can be specified using RGB, HEX, HSL, or even transparent colors using RGBA or HSLA color values.</p> </body> </html>
标签：css10,color,ut,Colors,values,World,Hello,CSS From： https://www.cnblogs.com/emanlee/p/18221149