Install latest/stable of gcolor3
Ubuntu 16.04 or later?
Make sure snap support is enabled in your Desktop store.
Ever wanted to know the value of that color on your screen? Gcolor3 enables you to pick the color from any pixel on your screen. It also offers a palette, so that you can easily mix and match a couple of colors together.
When you have found the perfect combination of colors, naturally you want to save them. Gcolor3 allows you to conveniently save and retrieve colors.
Gcolor3 is a color selection dialog written in GTK+ 3. It is much alike Gcolor2, but uses the newer GTK+ version and other modernisations to better integrate into your modern desktop.
Attribution Gcolor3 is written and maintained by Jens Hidskes. The summary and description were taken from the gcolor3 project website (https://www.hjdskes.nl/projects/gcolor3/).
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