What color hair did Guinevere have?
According to T. H. White, she had black hair, however he mentions other sources indicated she was blonde.
That of course depends on your opinion and facial features. You may look nice in a bleach blond hair color but better in a dark or strawberry blond hair color. YOU may even look "the best" in a black hair color or even a red hair color. So, yes blond CAN be the best hair color depending how it looks on you.
Depending on the type of hair color in your hair, it will either wash out over time, fade or grow off your hair. If you have temporary hair color on your hair it will wash out in 2 to 3 shampoos. If you have a semi-permanent hair color it will fade off in 4 to 6 weeks or less. If you have a permanent hair color on your hair it will have to grow off.
Sorry dear, but no. You can put a product called "Stripper" in your ahir which removes color, but leaves your hair being a random light color depending on what color your hair was dyed and what the natural color is. After you put the stripper in your hair you would get a new color and re-dye your hair to the closest possible color to what you want it to be. you will than have to…