<!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>16进制颜色值转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">Javascript原生16进制颜色值转RGB值</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="转换" type="button" name="btn"/> <br /><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>
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