Rainbow hair colour is one of the biggest beauty trends to emerge in years, and everyone seems to want to try it — maybe even your grandmother. These incredibly stylish mature women prove that beauty and style are ageless and to never be afraid to play with your look. They show off how to rock every shade from pastel cotton-candy-inspired hues to saturated jewel-toned blues and greens. If you've been nervous to make the leap and debut your own vibrant hair colour, let these women inspire you to try a more daring style.
Read on to see some of the coolest seniors out there.