Im working on a simple landing page. I have 5 background version. So simple so flat. But here is my problem. I use eyedropper tool in Photoshop to finde what is the RGB code of the background. But its not the same. On my PC I can see the colors perfect but on other laptops or mobile phones its not great. I don’t know what should I do. I saved the bg JPG, PNG but its still not working. Can you help me finde the solution ?