Is it possible to change the color of selected radio button's center circle

Question

Is it possible to style the center circle of a selected radio button, at least in webkit browsers…?

What I have now:

Answer 1

You could also apply a background-image when the radio button is checked

[type="radio"]:checked {
    width: 16px;
    height: 16px;
    -webkit-appearance: none;
    background-image:  ...
}

An example: http://jsfiddle.net/yZ6tM/