Hi shadowman007,
It is unfortunate that the right side of the monitor is little darker compared to the left side. Request you to remove the monitor cable from behind the monitor. Check if the same issue happens with the colored bar that appears on the screen. The monitor usually has a 3years manufacturer warranty from the date of purchase if bought separately.
Also send me the picture of the monitor with different color as background along with the purchase order number. I will check and let you know what needs to be done.