When I download any exported image to my Iphone the colors look dull

I made a new piece and for some reason no matter what, it looks dull on my phone(Iphone XR) screen, even if I screen shot it and examine on my PC it looks like the original colors. Does anyone else have this problem?

its either A: its a problem with your monitor, or B: its a problem with your iphone screen, dont forget to check your color space too, make sure its sRGB.