Well Tahki Jeans yarn has got you covered.

This tape yarn is made from 100% organic cotton and colored with low-impact dyes that are environmentally-friendly. Available is Denim, Smoke, Slate and even Kaki. Slate might be the perfect color to get your acid wash fix. So go ahead give it a whirl. Re-live the days of mall bangs and neon. Or you could try something a bit more conventional.

Yearn Worthy Yarn  Tahki Jeans  - 82