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I am trying to change the color of the blue ring around the devil from royal blue to white.

I keep receiving a message that says You can not use the Color Replacement tool because it does not work with alpha channels.

  1. What does that mean?

  2. Can I change the color of the ring to white without using the Color Replacement tool?

enter image description here

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    An Alpha Channel is a channel holding transparency data. Look at the Channels Panel... are you working on an alpha channel or are you working on a layer mask (which is an alpha channel)? – Scott Jul 31 '15 at 22:09
  • First, THANK YOU FOR YOUR RESPONSE! I'm sorry, I'm a real novice. How do I know? When I click on the Channels folder it brings up 5 thumbnails; RGB, Red, Green, Blue, and a completely blank square labeled Quick Mask. – Football Mom Jul 31 '15 at 22:37
  • I did remove the white square background -- which turned into checkered boxes. But I did that -- and need to keep it that way -- so I can use the ring as an o or zero..... o in MORAVIA or zero in 2015 – Football Mom Jul 31 '15 at 22:40
  • You are in the Layer Pabel but earching for the channels pannel which keeps RGB, Reg, Green, Blue and Alpha. I don't know why you need to use color replacement for this. Can't you just select the outer circle and then press delete or backspace to make the outer circle transparent by removing the blue color from the devil layer. Or you could just select everythibg except the circle and then press on "create mask" to mask the circle away which also makes its transparent – BlueWizard Jul 31 '15 at 23:10
  • You're in Quick Mask mode.. tap the Q key on the keyboard to exit out of it. – Scott Jul 31 '15 at 23:11
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If you just want to turn the circle into white or make it transparent then you are not searching for the channels and color replacement might be the wrong tool.

I dont know how much experience with Photoshop you have, thats why I link articles here to give you the opportunity to learn about the basics before fiddling with it. Photoshop in its core really is a very simple program and it makes fun to learn and use it.

Turning the circle transparent

Just select everything except the outer circle and press on "create mask".

The mask will be generated with black spots for the circle and white spots for the devil. The circle will be made transparent because of the mask.

You can edit that that mask by clicking on it and then just drawing with a brush or similar on it. You will not see the black/white pattern when you just select the mask but you will be able to see your image which makes it really easy for you just to draw with black on everything you dont want to see and draw with white on everything you want to see.

Alternatively to the mask-method you could select nothing except the circle you want to remove and then just press Delete or Backspace on your keyboard. The selected parts will will be removed and thus are no longer visible.
I recommend the approach with the mask, because it's non-destructive and thus you are later able to restore or alternste the original image as well as the mask.

Turnung the circle white

Create a fill color with the color white and create a mask for the fill color. Same principle here as in the transparent section: Black color on the mask hides the layer, white color makes it visible.
You want to select the outer cirlce you want to dye white and then you make everything on the color fill mask white while keeping the other parts black.
This will create a fully white circle which perfectly fits onto your previously blue curcle and thus hides it. Please note that the fill color with the masks needs to be above the devil layer to be visible.

You also could create a new layer and just fill the parts you need white with white without using a mask. This will have the same result but when using a mask it gets really easy to change to color of the overlay later.

I recommend you to do both of the things I just explained to you so you can learn them and see how they affect the image and what you might need to do to keep image quality.

Sorry that I'm not able of putting puctures in here. I'm currently online from my phone.

I hope I was able to help you.
Have a nice day

You need more information?

  • I have "selected" the out circle.... can I change the colour that way? I don't know how to "select everything else" I'm sorry I am so dumb! It's embarrassing! – Football Mom Jul 31 '15 at 23:45
  • *outer circle.... – Football Mom Jul 31 '15 at 23:45
  • You can press crtl + shift + I to invert the selection – BlueWizard Jul 31 '15 at 23:47
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    OMG! I DID IT! THANK YOU SO MUCH!!! SCOTT & JONAS!!! – Football Mom Jul 31 '15 at 23:51
  • I provided 3 links where you can learn on how layers, selection and masks work. If you dont know much about the topic i recommend you to look at it tonlesrn in. I can also recommend watching tutorials on youtube where tjey show you which buttons to press. There are many many tutorials out there which you can easily follow to get understanding on how photoshop works – BlueWizard Jul 31 '15 at 23:51

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