I usually convert my logos to a particular colour (not just greyscale) in photoshop by using the following process: Convert to Greyscale/Choose Duotone/Select colour and click okay.

photoshop screenshot

I need to do the same thing in GIMP but can't find duotone/monotone options. I need a method of being able to do this conversion quickly and without having to select each part of the logo and the paint brush.

Does anyone have any suggestions?


If the logo is still on its own transparent layer, at least two ways:

Alpha lock:

  1. select the layer, and set alpha-lock (checkerboard icon at top of the layers list)
  2. bucket-fill with required color (or apply whatever paint tools you fancy, such a Blend). The alpha-lock will preserve the opacity lever of all pixels.

Reusing the selection:

  1. Select the layer and Layer>Transparency>Alpha to selection
  2. Add a new transparent layer, and hide the original logo layer
  3. Bucket-fill the selection (or Blend, etc....)
  • Nice solution. Works well for converting the whole logo with the 'Fill whole selection' option of the Bucket-Fill tool.
    – holmberd
    Mar 16 '19 at 15:06

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