My hair is white but I have a permanent colour in a dark brown, which actually looks great on me as it tones down the colour of my skin and brings out the colour of my eyes, which is my best feature. I go to a good salon and keeping it looking good is expensive but is worth every penny. White hair can be extremely resistant to taking colour, I doubt if a semi permanent will work for you but pink and blue rinses do. If you like pink and blue rinses, that's probably your cheapest option. What will look best is down to your colouring, how thick or not your hair is, how it is cut and how much money, time and effort you are willing to use. Growing it out will take about a year and if done properly with a good hairdresser, you won't have regrowth stripes but it is a big decision, so if you do go down the permanent route be sure that that is what you want. Good luck. btw I have no intention of growing mine out and I'm mid 70's.