If I dye my originally black hair electric blue permanently for months, how long do I keep the dye on my hair? - Quora
![L'Oréal Paris Colorista Permanent Gel Hair Dye, Long-Lasting and Vibrant At-Home Hair Colour, High-Intensity Hues with Up to 3x More Shine, Colour: Blue Black: Amazon.co.uk: Beauty L'Oréal Paris Colorista Permanent Gel Hair Dye, Long-Lasting and Vibrant At-Home Hair Colour, High-Intensity Hues with Up to 3x More Shine, Colour: Blue Black: Amazon.co.uk: Beauty](https://images-na.ssl-images-amazon.com/images/I/81crkDpd-DL._AC_SL1500_.jpg)
L'Oréal Paris Colorista Permanent Gel Hair Dye, Long-Lasting and Vibrant At-Home Hair Colour, High-Intensity Hues with Up to 3x More Shine, Colour: Blue Black: Amazon.co.uk: Beauty
![Blue #balayage waves by @jaylenzanelli using #IGORAPearlescene | Blue natural hair, Light blue hair, Blue ombre hair Blue #balayage waves by @jaylenzanelli using #IGORAPearlescene | Blue natural hair, Light blue hair, Blue ombre hair](https://i.pinimg.com/originals/45/b4/3a/45b43ac8736e8590602549d301a6d68a.jpg)
Blue #balayage waves by @jaylenzanelli using #IGORAPearlescene | Blue natural hair, Light blue hair, Blue ombre hair
![Dying Brown Hair Blue/Teal | No Bleach, Arctic Fox Aquamarine + Blue Jean Baby on Natural Brown Hair - YouTube Dying Brown Hair Blue/Teal | No Bleach, Arctic Fox Aquamarine + Blue Jean Baby on Natural Brown Hair - YouTube](https://i.ytimg.com/vi/j81UZ-Uxnnk/maxresdefault.jpg)