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Hello, Antoine "Innoh" here! A 🇫🇷 illustrator and game-designer who loves anything fantasy and TTRPG related. I'm currently working on "The Cult of Magest", so stay updated!

Innoh_Create #1 - Color palette synthetizer

6/25/2025

☀️ Hello cultists! Here is a little update, not directly related to TTRPGs!

I’ve spent the last two weeks coding a small web app to help me create color palettes and conveniently import them into my favorite graphic software: Procreate. But the more I coded, the more I realized that this little tool could be useful for people other than me! So I decided to make it a real tool, hosted online and all!

So here it is:

Innoh’s Palette Synthetizer

The idea:

When I manually create palette for my illustrations, I initially select 3 colors, then merge them all together, using different shades and a multiply mode.

A picture's worth a thousand words:

_Sometimes some very beautiful colors emerge!

I always use the same process for all my illus so I was wondering if it was reproducible using CODE! (haven’t coded for over a year). I also wanted to take advantage of Procreate's palette import utility and no longer rely on an image from which I extract the colors with the eyedropper. So I had to create an app that allowed me to generate .ase files too.

The result:

After some tinkering and coding (in Typescript, using React), I’ve created this!

This little app generates a 30-color palette from the 3 you selected. There are different modes for the generation (the reducer modes) and different modes for how the final palette is arranged (the organizer modes)! It allows you to download a .ase file (for Procreate, for example) or a .aco (for Clip Studio Paint).

I’m pretty happy with the result because it really replicates the colors I tend to choose!

Cool things I learned:

Now I really want to create other small apps! Especially for TTRPGs, idk, dungeons generators, npc creators!

Some inspiration:

You can share the palettes you created and all the parameters you chose using the Share button!

Here are some I found nice:

Malibu, Wasabi & Rock Spray

Blue Ribbon, Honey Flower & Chartreuse

Pomegranate, Golden Sand & Orient

Eeeeet voilà! Hope you’ll find this little tool interesting! Feel free to share your palettes in the comments! Here is the link again:

https://synthetizer.innoh.art

See you next article, this time probably about TTRPGs!

The cult is watching! ☀️

Innoh_Create #1 - Color palette synthetizer – Innohcolors