This is the Red/Blue Tentacruel that I recolored with the Gen 3 palette.
This is the Charizard yellow sprite that I recolored with the Gen 3 palette
This is the Yellow Mewtwo that I recolored with the Gen 3 palette.
Below are some sprites I have made. I only have 3 right now but I make them sometimes.
I use a program called Piskel. The 3 sprites I have so far are Gen 1 recolors. I uploaded the gen 1 sprites into the program and then in another page, I get all the HEX codes of the colors and swap all the old Gen 1 colors for the Gen 3 sprite colors.
If you would like to use these sprites for your own webpages/content, feel free! (With credit to me/links to this site, of course) Do not use these sprites for commercial use unless you get written permission from me.
This is the Red/Blue Tentacruel that I recolored with the Gen 3 palette.
This is the Charizard yellow sprite that I recolored with the Gen 3 palette
This is the Yellow Mewtwo that I recolored with the Gen 3 palette.