Color profile

Hi Pashan, Your macbook screen has its own ICC profile, as does any image you work on or create in Adobe apps like Photoshop -

As D. Fosse suggested, if you have no idea then sRGB is a good basic choice as a Photoshop working colour space. Some prefer Adobe RGB or a larger colour space, but if you make that choice you need to understand the implications.

I suggest you learn a little about ICC colour profiles, what they do and how they affect your work here:

here is some reading on ICC profiles and how they work for you to provide accurate colour through the digital workflow: https://www.colourmanagement.net/advice/about-icc-colour-profiles/

I hope this helps

thanks
neil barstow, colourmanagement.net :: adobe forum volunteer
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One important thing is to embed an image’s profile. 

The short answer is: if you don't know, use sRGB. Anything else requires that you know what you're doing.

This is a much larger question concerning color management. As part of a color-managed workflow, you should calibrate and profile your laptop display, and then the color space utilized within Photoshop will depend greatly on how you intent the image(s) to be used. For example, an image on social media will generally have a different color space then something going to print.

warm;y/j