: In GIMP, how to colorize using a reference color? I have an image I wish to colorize using a picked color. What is the handiest/easiest way to do this in GIMP? I've tried my best by checking

@Frith110

This can be achieved by clicking "Colors" --> "Colorify..." (Not "Colorize...") That brings up a dialog box.

Click the color box next to "Custom color:" to enter HSV, RGB, Hex, or use a color picker.

Documentation for "Colorify" is available here: docs.gimp.org/en/plug-in-colorify.html

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@Si6392903

I'm not sure if that's what you want to achieve, but I think you mean „coloring grayscale image”. If so, one of the possibilities is to make a new layer of blending mode “Color” over “grayscale” original, pick specific color and paint in desired regions of upper layer with that color. In places where bottom layer is black, image will remain black. If it's white—it'll remain white. Other brightness values will be “colorized” using tones matching selected color. Of course all that needs to be done in RGB mode. I hope attached screenshot will be helpful:

Other method that comes to my mind is to use “color map”, but I'll stop here for now :).

If that's not want to do, give me a hint—I'll remove this answer as irrelevant.

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