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Using JavaScript to convert hexadecimal color values to RGB, javascriptrgb

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Using JavaScript to convert hexadecimal color values to RGB, javascriptrgb

This article describes how to convert hexadecimal color values to RGB using JavaScript. Share it with you for your reference. The specific implementation method is as follows:

Copy codeThe Code is as follows: <! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Transitional // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = UTF-8"/>
<Title> hexadecimal color value to RGB </title>
<Style>
* {Margin: 0; padding: 0; font-family: 'Microsoft yahei '}
. Replace {width: 400px; height: 210px; margin: 0 auto; padding-top: 40px ;}
. Title {text-align: center; display: block}
Form {width: 200px; margin: 30px auto ;}
Input {outline: none ;}
Input [type = "button"] {cursor: pointer ;}
</Style>
<Script>
Function hexToR (h ){
Return parseInt (cutHex (h). substring (0, 2), 16)
}
Function hexToG (h ){
Return parseInt (cutHex (h). substring (2, 4), 16)
}
Function hexToB (h ){
Return parseInt (cutHex (h). substring (4, 6), 16)
}
Function cutHex (h ){
Return h. charAt (0) = "#"? H. substring (1, 7): h
}
Function setBgColorById (id, sColor ){
Var elems;
If (document. getElementById ){
If (elems = document. getElementById (id )){
If (elems. style) elems. style. backgroundColor = sColor;
}
}
}
</Script>
</Head>
<Body>
<Div class = "replace">
<Span class = "title"> convert the native hexadecimal color value of JavaScript to the RGB value </span>
<Form name = "rgb">
<Input value = "ffffff" maxlength = "7" size = "16" name = "hex"/>
<Input onclick = "setBgColorById ('colorsample', this. form. hex. value );
This. form. r. value = hexToR (this. form. hex. value );
This. form. g. value = hexToG (this. form. hex. value );
This. form. B. value = hexToB (this. form. hex. value); "value =" Conversion "type =" button "name =" btn "/>
<Br/>
R: <input style = "width: 30px" size = "3" name = "r"/>
G: <input style = "width: 30px" size = "3" name = "g"/>
B: <input style = "width: 30px" size = "3" name = "B"/>
</Form>
</Div>
</Body>
</Html>

Shows the running effect:

I hope this article will help you design javascript programs.

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
convert hexadecimal to rgb convert hex color to rgb convert color code to rgb convert hex to rgb color hex color to rgb how to convert hex color code to rgb rgb to paint color converter
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