Every photo and object under the Canon 600D flash has color difference. Ask the experts how to tune it. The background is white.

If you are too lazy to adjust the white balance or can't adjust it before shooting, I suggest that you don't take photos in JPEG format, take photos in RAW format, and then use the software in the CD attached to the camera on your computer to adjust the white balance, color saturation and contrast of the photos in RAW format to achieve the best effect. (The average RAW frame is about tens of meters, and the 600D is about 20 meters, which is considered as a large frame. )