from green to red color depend on percentage

Question

I have a poll system and I want answers for this poll to be colored. For example: If it\'s 10% it would be red, if 40% it would be yellow and if 80% it would be green, so I

Answer 1

HSL will work in IE8 using jquery-ui-1.10.4.

I modified jongo45's answer to accept lightness in the function.

function getColor(value, lightness) {
    //value from 0 to 1
    var hue = ((value) * 120).toString(10);
    return ["hsl(", hue, ",100%,", lightness, "%)"].join("");
}

Answer 2

This method works well in this case (percent from 0 to 100):

function getGreenToRed(percent){
            r = percent<50 ? 255 : Math.floor(255-(percent*2-100)*255/100);
            g = percent>50 ? 255 : Math.floor((percent*2)*255/100);
            return 'rgb('+r+','+g+',0)';
        }