HTML code :
<label for="lblColor" id="lblColor" style="color:blue"> Label Color </label>
JQuery Code :
var lblColor = $('#lblColor').css('color');
document.write(lblColor);
OUT PUT :
rgb(0, 0, 255)
You can Test above on JsFiddler (Click Run Button) :
http://jsfiddle.net/mM2XW/67/[
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I hope this will help to You.