Look at the pink circle image. Try standing up so that you’re looking down at your screen from a sharp angle. If you have a laptop, you can tilt your screen to achieve the same effect. You can also try looking at the circle from the left or from the right. If the pink circle changes color, it means you have a bad monitor. In my experience every time you edit photos or videos and changing colors using the bad monitor, the colors that you picked to color grade the video or photo is actually not the correct color you are seeing because the monitor is showing you the wrong colors.