Created
August 20, 2011 00:38
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A random color generator in javascript/jQuery. Just playing around.
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| <html> | |
| <head> | |
| <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js" type="text/javascript"></script> | |
| <script> | |
| $(document).ready(function() { | |
| var colortest = $("#colortest"); | |
| for (i = 1; i <= 300; i++) { | |
| var c = genColor(); | |
| var newhtml = "<span style='font-family:\"Courier\",monospace;width:50px;height:30px;background-color:#" + c + "'>#" + c + "</span>"; | |
| colortest.html(colortest.html() + newhtml); | |
| if (i % 10 === 0) { | |
| colortest.html(colortest.html() + "<br/>"); | |
| } | |
| } | |
| }); | |
| function genColor() { | |
| // take 3 random values, presumably this will be similar to MD5 bytes | |
| var r = Math.floor(Math.random() * 255); | |
| var g = Math.floor(Math.random() * 255); | |
| var b = Math.floor(Math.random() * 255); | |
| // floor again | |
| r = Math.floor(r); | |
| g = Math.floor(g); | |
| b = Math.floor(b); | |
| if (r < 50 && g < 50 && b < 50) r += 50; | |
| if (r > 150 && g > 150 && b > 150) r -= 100; | |
| if (Math.abs(r - g) < 50 && Math.abs(r - b) < 50 && Math.abs(g - b) < 50) { | |
| if (r > 50) r -= 50; | |
| if (g > 50) g -= 50; | |
| if (b < 200) b += 50; | |
| } | |
| var rstr = r.toString(16); | |
| var gstr = g.toString(16); | |
| var bstr = b.toString(16); | |
| // pad 0's -- probably a better way, but this was easy enough. | |
| if (rstr.length === 1) { | |
| rstr = "0" + rstr; | |
| } | |
| if (gstr.length === 1) { | |
| gstr = "0" + gstr; | |
| } | |
| if (bstr.length === 1) { | |
| bstr = "0" + bstr; | |
| } | |
| return rstr + gstr + bstr; | |
| } | |
| </script> | |
| </head> | |
| <body style="margin-left:auto;margin-right:auto"> | |
| <div id="colortest" style="width:800px"></div> | |
| </body> | |
| </html> |
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