reduceHexValue = function reduceHexValue(value) {
  if (value.length === 7 && value[1] === value[2] && value[3] === value[4] && value[5] === value[6]) {
    return "#" + value[1] + value[3] + value[5];
  }

  return value;
}
Reduces hex values if possible e.g. #ff8866 to #f86
@private