Color Overlay?

[Flippy]

I'm looking to add a color overlay to a photo so like I want the photo to be all one color but you can still like see the objects and shit

Example: https://45.media.tumblr.com/2395e850d24d2b46d697c7c1442dfb58/tumblr_mxoj3gNG161qdhsq0o1_500.gif (NSFW)

 

[Hurt]

You can do that by applying a Gradient Map in Photoshop.
Before:

After: