I’m using Photoshop CS4 and have a project where I’m using a layer/section of brushed chrome and another adjacent layer/section in charcoal carbon fiber (pattern) background. On the CF layer, I’m adding a text layer which is in color. If I start the project in RGB mode, it prints out with a purple cast on both the metal and the CF. If I switch to a Greyscale mode it prints out fine, but now I can’t use the red colored text which was created in RGB mode. How do I add RGB elements (layers) to my Greyscale layered image?
Your layers need to be in the same mode. Rather than changing the mode of your .PSD to turn it into black and white, desaturate your background then put your text in a new layer on top while keeping your document in RGB.
Source : Link , Question Author : Mike , Answer Author : kamalo