Google photo issue on pixel xl

[micktai]

On my pixel xl when I download photos or transfer photos that I taken with my DSLR to my phone the colour at really washed out , but it shows fine when I view them on google photo on pixel ! Then when I download from google photo the colour of the pics are washed out again ! It's doesn't happen when u view them , it happens when u either download them or save them on pixel phone device ! All those pictures looks great on all other devices ! Has anyone experienced this issue ? I have to say I luv this phone everything is perfect ! It's just this issue that really hurt the phone ! Which means I can't save any high quality photo's that I took with my DSLR , and can't send them to friends !
Any help will be great ! Thx