Some people asked for a palette tutorial and here is a really.. horribly made one. I did make this once before, but long story short apparently my computer shut down while I was away (with everything not saved) and lost it all. I had a lot of key points in that one that I don't have in this one so PLEASEEEE go check out the other tutorials I've listed because they are way more helpful than this silly thing.
But I do hope it atleast gave you an idea of how easy you COULD make palettes. This doesn't have to strictly be pixels, it can be applied to digital artwork as well.