How do you set up & arrange your Photoshop working space for website design?

Go to Edit – Color Settings and set the working space for RGB to Monitor RGB and Open your document and go to Edit – Assign Profile and then set it to Working RGB, Ensure View – Proof Colors is turned off

 When saving files with Save for Web & Devices, ensure that Convert to RGB is turned off. If you’re saving a JPEG file, then also turn off Embed Color Profile