Can’t remove a color?

You are not removing a color.  You are removing the selected pixels to allow transparency (or converting the pixels to transparent, if you prefer).   So, simply press Delete after making your selection.  The background will then become transparent.

If you are trying to remove a black background, try the Magic Eraser tool.

Hello, I've removed a color before and not sure why it's not working this time. I unlocked the background layer, selected black, and clicked remove color through Enhance at the top bar. It's a jpeg and just wondering if there's something I'm missing? Thank you in advance

By @Brian29858306jyp9

Hi @Brian29858306jyp9 

Not sure I understand your question.

'Remove color' does mean that you want to make a black and white photo by removing the color information, it's the same as 'convert to black and white', really in a monochrome pictures based on tones rather than colors.

By the way, black is not a color, just like white or grays. It's the darkest tone in a black and white image, it's the absence of tone and color.