Photoshop/Elements: how do you change to full color mode?

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  • Updated 10 months ago
  • (Edited)
MY PHOTOSHOP keeps saying,,,,,COULD NOT USE COLOR REPLACEMENT TOOL, BECAUSE IT ONLY WORKS IN FULL COLOR MODES.. my mom has the same program, and it works on her computer, ive tried to change color mode on the image dropdown, but it stll wont let me do any editing.
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jennie fernandes

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Posted 4 years ago

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Dan Smith

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Did you try Image>Mode RGB Color?
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Chris Cox, Sr. Computer Scientist

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The color replacement tool can't work on indexed color images, duotone images, multichannel images, or grayscale images or masks.
It needs an RGB, LAB or CMYK image.
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Rick Fleming

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I have tried a varied assortment of photos from my albums. The Image>Mode RGB Color is in effect. I've tried both .jpg and Adobe format files (from Raw). No matter what I just keep getting the same message:

"Could not use the Color Replacement tool because it only works in full color modes."

Help??
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Chris Cox, Sr. Computer Scientist

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Then you aren't targeting a document that is in a full color mode.
Check the layer and channels that you are targeting.
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Rick Fleming

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Thank you Chris. I have it figured out now. I was not paying careful enough attention to the instructional video I was viewing on YouTube.
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Maxim Chinyakin

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This makes no sense. There's no reason for the color replacement tool not to work in indexed/bitmap modes. Now I'm forced to switch between various modes instead...
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Chris Cox, Sr. Computer Scientist

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Bitmap has no color to work on, because it is only black and white.

Indexed color can't do full color blending because it only has the indexed color values, so there is no chance to do the color manipulation needed for the color replacement tool.

So yes, there are good reasons why that tool only works in full color modes.
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Maxim Chinyakin

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Oh, I see, but I was expecting simple replacement of the index (a solid color) with another one without any blending, in the fashion of the pencil tool (seeing how easy it is to implement).
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Chris Cox, Sr. Computer Scientist

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No, that is not how the color replacement tool works. And the pencil is already the pencil, so there is no need to reimplement it.