Force image grayscale while in RGB mode Photoshop 13 Apr, 2005 Press Shift+Command+U to remove all the color (Desaturate) and make your image grayscale while still in RGB mode. Share this post:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Google+ (Opens in new window)Click to email this to a friend (Opens in new window)Like this:Like Loading... Related posts: Copy items from multiple layers at a time in Photoshop Correcting washed-out color photos in Photoshop Using InDesign’s page jumping feature Edit multiple text layers in Photoshop Tags: grayscalePhotoshopshortcut