Eyebrows are tricky and should only be colored by a professional in a salon. Bleaching eyebrows is risky if you try it alone, because even a single drip, if it falls into your eye, can cause blindness.
If you want to try lightening your eyebrows at home, you might try dabbing them with lemon juice or vinegar and then sitting in the sun. It's a time-honored way to lighten hair, and if you get lemon juice or vinegar in your eyes, it will sting a little, but you won't go blind.
Otherwise, see a professional stylist that can apply a bleach paste to your eyebrows to lighten them a few shades. Many women who have dyed their hair color lighter opt to lighten their eyebrows to match. Overall, having your eyebrow color complement your hair color (natural or dyed) will give you a more natural appearance.
