Black Ink on Hunter Green Pants?

If the ink is pen ink, try hair spray. Whatever you do, do not dry the pants in a dryer. If you treat them and the stain doesn't come out, drying will set the stain. Spray the area with regular hairspray and wash per instructions on the pants. Woolite also has a carpet/upholstry cleaning product that is designed for different types of stains. There are two different cleaners, one for organic (blood, sauces, etc.) and the other for greases, oils, etc. Try those also.

I sprayed WD-40 on ink in clothes. Let it sit for awhile (don't scrub it) then, try daubing it out with a clean cloth.

I've had black ink on a light carpet before and used cheap hairstray and dabbed with a wet cloth several and it took the ink out.

I found something very good for removeing stains off of clothes in my Mom's kitchen, you might find it in yours!!!!!!!! SCISSIORS> Seriousley try Wd-40 or" Brake Kleen" The later smells like dry cleening fluid