The project is SUPER lag now, so I won't add more things, like type color or somethings else, you can go inside and set. And I won't add it to the "Hex->RGB" (you knew reason) Oh, I'll try to add more (or ask to someone for help :P)
TYSM to https://www.rapidtables.org/vi/convert/color/rgb-to-hsv.html for the formula (Thx to Google translate for "formula" XD)