<html> <head> <meta content="text/html; charset=utf-8" http-equiv="content-type"> <meta content="在线取色器"> <meta content="在线取色器"> <title>RGB网页颜色在线取色器</title> <style type="text/css"> <!-- a.g:link { text-decoration: none; color: #0000FF; font-size: 13px; } a.g:visited { text-decoration: none; color: #0000FF; font-size: 13px; } a.g:hover { text-decoration: none; color: #FF0000; font-size: 13px; } .gray{color:#666666} .f12{font-size:12px} .box{padding:2px;border:1px solid #CCC} --> </style> <script language="javascript"> <!-- function h(obj,url){ obj.style.behavior='url(#default#homepage)'; obj.setHomePage(url); } function $(id){ obj=document.getElementById(id); if (obj==null) obj=document.all.id; return obj; } //检查颜色值-Begin function isNum16(ch) { if (ch >= '0' && ch <= '9')return true; if (ch >= 'A' && ch <= 'F')return true; if (ch >= 'a' && ch <= 'f')return true; return false; } function isAllNum16(str1) {//判断颜色值。除第一个字符#外的任一个值是否大于等a,A,0,小于等于f,F,9，否则报错。 for (i=1; i<str1.length; i++) { if (!isNum16(str1.charAt(i))) { return false; } } return true; } function checkCol(myColor) { //made by jiarry,input color value to change background if(myColor!="") { if(myColor.length !=7 || myColor.charAt(0)!="#") { alert("颜色值加#至少7位，请检查！"); $("SelColor").value=""; } else if(!isAllNum16(myColor)) { alert("颜色代码错误，请检查\n 颜色代码示例:#ff6600"); $("SelColor").value=""; } else{ return myColor; } } } //检查颜色值-END var SelRGB = '#808080'; var DrRGB = ""; var SelGRAY = '120'; var SelCol=""; var baseCol="#808080"; var light="120"; var RGB=$("RGB"); var hexch = new Array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'); //add innerText to FireFox Begin if(!document.all){ HTMLElement.prototype.__defineGetter__ ( "innerText", function () { var anyString = ""; var childS = this.childNodes; for(var i=0; i<childS.length; i++) { if(childS[i].nodeType==1) anyString += childS[i].tagName=="BR" ? '\n' : childS[i].innerText; else if(childS[i].nodeType==3) anyString += childS[i].nodeValue; } return anyString; } ); } ////add innerText to FireFox End function ToHex(n) { var h, l; n = Math.round(n); l = n % 16; h = Math.floor((n / 16)) % 16; return (hexch[h] + hexch[l]); } function DoColor(c, l) { var r, g, b; r = '0x' + c.substring(1, 3); g = '0x' + c.substring(3, 5); b = '0x' + c.substring(5, 7); if(l > 120) { l = l - 120; r = (r * (120 - l) + 255 * l) / 120; g = (g * (120 - l) + 255 * l) / 120; b = (b * (120 - l) + 255 * l) / 120; }else { r = (r * l) / 120; g = (g * l) / 120; b = (b * l) / 120; } return '#' + ToHex(r) + ToHex(g) + ToHex(b); } function EndColor() { var i; var GrayTable=$("GrayTable"); if(DrRGB != SelRGB) { DrRGB = SelRGB; for(i = 0; i <= 30; i ++) GrayTable.rows[i].bgColor = DoColor(SelRGB, 240 - i * 8); } var SelColor=$("SelColor"); var RGB=baseCol; var GRAY=light; var ShowColor=$("ShowColor"); SelColor.value = DoColor(baseCol, light); ShowColor.bgColor = SelColor.value; document.getElementById('copytip').innerHTML=''; } function ctOut(e) { baseCol=SelRGB; EndColor(baseCol); } function ctClick(e) { SelRGB = e.bgColor; EndColor();} function ctOver(e){ baseCol = e.bgColor.toUpperCase(); EndColor(); } function gtOver(e){ light = e.title; EndColor(); } function gtOut() { light = SelGRAY; EndColor(); } function gtClick(e){ SelGRAY = e.title; EndColor(); } function okClick(){ var SelColor=$("SelColor"); self.parent.setColor(SelColor.value); } function inpCol(o){ var l=o.value; if (l.length==7){ $('ShowColor').bgColor=checkCol(o.value);} else if(l.length>7){ o.value=l.substring(0,7); alert("颜色代码加#不能超过7位"); } } --> </script> </head> <body bgcolor=#ffffff text=#000000 vlink=#0033CC alink=#800080 link=#0033cc topmargin="0"> <p> </p> <table><tr><td> </td></tr> <tr><td> </td></tr> </table> <table cellspacing="0" cellpadding="0"> <tr> <td bgcolor="#40A6DD"><b> 颜色选择器</b></td> </tr> <td> <br> <table cellpadding="0" cellspacing="0"> <tr valign="top"> <td width=515> <table cellspacing="0" cellpadding="0"><tr><td> <span>颜色：</span> <div> <TABLE ID=ColorTable BORDER=0 CELLSPACING=2 CELLPADDING=0> <SCRIPT LANGUAGE=JavaScript> function wc(r, g, b, n) { r = ((r * 16 + r) * 3 * (15 - n) + 0x80 * n) / 15; g = ((g * 16 + g) * 3 * (15 - n) + 0x80 * n) / 15; b = ((b * 16 + b) * 3 * (15 - n) + 0x80 * n) / 15; document.write('<TD BGCOLOR=#' + ToHex(r) + ToHex(g) + ToHex(b) + ' height=8 width=12 onmousedown="ctClick(this)"></TD>'); } var cnum = new Array(1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0); for(i = 0; i < 16; i ++) { document.write('<TR>'); for(j = 0; j < 30; j ++) { n1 = j % 5; n2 = Math.floor(j / 5) * 3; n3 = n2 + 3; wc((cnum[n3] * n1 + cnum[n2] * (5 - n1)), (cnum[n3 + 1] * n1 + cnum[n2 + 1] * (5 - n1)), (cnum[n3 + 2] * n1 + cnum[n2 + 2] * (5 - n1)), i); } document.writeln('</TR>'); } </SCRIPT> </TABLE> </div> </td><td valign="top"> <span>亮度：</span> <div> <TABLE ID=GrayTable BORDER=0 CELLSPACING=0 CELLPADDING=0> <SCRIPT LANGUAGE=JavaScript> for(i = 255; i >= 0; i -= 8.5) { document.write('<TR BGCOLOR=#' + ToHex(i) + ToHex(i) + ToHex(i) + '><TD TITLE=' + Math.floor(i * 16 / 17) + ' height=5 width=20 onmousedown="gtClick(this)"></TD></TR>'); } </SCRIPT> </TABLE> </div> </td></tr> </table> </td> <td width=87 valign="top"> <span>选中颜色：</span> <div> <table ID=ShowColor cellspacing="0" cellpadding="0"> <tr><td></td></tr> </table> </div> </td> <td valign="top"> <span>代码：</span><br> <INPUT TYPE=TEXT ID=SelColor value="#FFFFFF" SIZE=7 onKeyUp="inpCol(this)"> <input type=button value=" 复制 "><div></div></div><div>基色 : <SPAN ID=RGB>#000000</SPAN><BR>亮度 : <SPAN ID=GRAY>120</SPAN><BR></div></td> </tr> </table> <script> EndColor(); </script> </td> </tr> </table> <center> </center> </body> </html>
JS实现的RGB网页颜色在线取色器完整实例
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