I had very light blonde hair growing up, which has gradually darkened as I have gotten older. I always assumed that my hair had just become more of a dirty blonde, but I have people telling me one of three things: that I am a dirty blonde (as I usually identify), that I am a dark strawberry blonde, or that I am now a light brunette. This issue is of course exasperated by the fact that in direct sunlight you can more clearly see the red and light blonde in my hair. I have to stress that all of these photos are unfiltered and I have NEVER dyed or altered my hair color. I know it will seem it by the differences in the photos, so you will understand why I have to always deal with people accusing me of altering it!
http://imgur.com/a/ahbCK