3 Answers. Sorted by: 5. If starting a new document, choose RGB as the color space in the New Document dialog window. If you started your document in CMYK then converted it to RGB copy/paste everything to an RGB document. The color mode you start a document in determines the color build for all libraries - Swatches, Brushes, Symbols, Styles
Go into your channels. Select any areas of composite black. and with CMYK channel (the top composite channel) checked, do Copy. Then go to the Black channel and do Paste. Now reselect and go into the Cyan and fill with white, the Magenta and fill with white, and the Yellow and fill with White. Congrats, you're done.
May 19, 2023. The RGB color model has a significantly wider color gamut range than the CMYK color model. That's why you're seeing a lot of colors getting clipped when converting to CMYK. Whoever created the RGB-based graphic obviously did so without print-based work in mind; the graphic may only be meant for electronic screens.Adjust the Image Color Mode Go to “Mode” at the “Image” tab on the top corner. There will be a tick on “RGB Color” as shown in the image below. Change the color mode by clicking on the “CMYK Color”. (Image>Mode>CMYK Color). A window will pop up (which is a warning on the technical side but nothing to worry about), click “ok XJ66a.