Illustrator Scripting :: Changing Color Of A Selection To HEX

I'm new to illustrator scripting (but not to javascript or programming. I have an AI file that has multiple layers. each layer has several items that are supposed to be of same color. I have an array of HEX values.

I would like to loop over all items in a single layer, select them and change their color to some given HEX. Once that works, I will run on all HEX entries in array and save each variation in a separate PNG file.
 
For the first part i wrote some script (see below), but i do not see any change in the file after i run the script. No errors and no change. I run the script once i select all items in a specific layer.
 
My code:

function hexToRgb(hex) {
    var result = /^#?([a-fd]{2})([a-fd]{2})([a-fd]{2})$/i.exec(hex);
    return result ? {
        r: parseInt(result[1], 16),
        g: parseInt(result[2], 16),
        b: parseInt(result[3], 16)

[Code] ......