fronend/js/helpers.js

function hexToRgb(hexCode) {
    var patt = /^#([\da-fA-F]{2})([\da-fA-F]{2})([\da-fA-F]{2})$/;
    var matches = patt.exec(hexCode);
    var rgb = "rgb(" + parseInt(matches[1], 16) + "," + parseInt(matches[2], 16) + "," + parseInt(matches[3], 16) + ")";
    return rgb;
}

function hexToRgba(hexCode, opacity) {
    var patt = /^#([\da-fA-F]{2})([\da-fA-F]{2})([\da-fA-F]{2})$/;
    var matches = patt.exec(hexCode);
    var rgb = "rgba(" + parseInt(matches[1], 16) + "," + parseInt(matches[2], 16) + "," + parseInt(matches[3], 16) + "," + opacity + ")";
    return rgb;
}