Beginner's question about posting photos

[mjcmt]

I've been having a lot of trouble posting photos. When I upload a photo it displays much darker and muddier than the way it edits. This happens on a FujiX forum too. I've had problems whether editing on apple's Photo, Gimp, or Silver Effect Pro 2.

They post fine on Flickr, but when I view Flickr on my phone many but not all photos show up dark and un-viewable. To have them to be viewable here I have to make a different mediocre version.

I edit on an 21.5" Apple iMac w/ 4k retina display.

Any one else experience this? And how do I correct it?

 

[Overread]

What file format are you saving them as. It might be you're using a format that isn't fully supported in all browsers.

Typically for online you use jpeg (not jpeg 2000 or any one of the number of other variations)

Also can you post a photo or two to this thread, perhaps both "versions" so we can get a look at them.

 

[mjcmt]

I use jpegs. It doesn't always happen either. I wonder if it could be the internet upload speeds?

 

[Derrel]

What color profile are you tagging your exported photos with? sRGB is what most Windows machines will use display your file with m

 

[mjcmt]

What color profile are you tagging your exported photos with? sRGB is what most Windows machines will use display your file with m

I'll check and make sure.
It's sRGB IEC61966-2.1