How do i dye a pair of pink/reddish jeans to dark red? And will they always bleed?

I own a pair of jeans that is a bright red/pink color and i want to make them dark red. I have never dyed jeans before and do not know how. I know there is rit-dye, but does it work for jeans? Also, once i dye them, will they always bleed out, or will they keep the color? Thanks
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