Such a sort of question has been asked by a number of people and the majority of the experts have mostly come up with a similar response and I’ll try to make it in points…

1. If you want to wear a particular color and you have no idea about your new look, you can then wear a temporary color… such temporary colors are really a great idea for testing the shade you desire…or you can simply click on any hairdressing web site, (there is actually a page where you can try different colors online, you can simply place your picture and try thousands of colors and hairstyles!)…

2. If you like a particular color and you want to give it a longer - lasting try, you might consider using (semi- or demi- permanent hair color formula) such stuff are designed to last through 6 to 12 shampoos…

3. Always try to buy a color that is lighter than your natural shade color…

4. If you have a grey hair and you want to color it, try to apply this below formula:

If your hair is 10% grey, select then a color that is three times lighter than your natural shade color…

If your hair is 10% to 30% grey, select a color that is three times lighter than your natural shade color…

If your hair is 30% to 50% grey, select equal parts one level lighter and two levels lighter than your natural shade color…

If your hair is 50% to 70% grey, select a color that is two levels lighter than your natural shade color…

If your hair is 70% to 90% grey, select equal parts of color matching your natural shade color and one level lighter…

If your hair is 90% to 100% grey, select a color matching your natural shade…