Natural ways to redden the hair?

I used to be much more ginger when i was a kid, and at times i still look a lot more ginger(when exposed to the sun, or just getting more sunlight when its summer). But ive realized my hair is getting more and more brown. I dont want to dye it or use a product with dye in it; how can i bring back redness with any natural stuff? Like homemade masks etc