The perfect Strawberry Blonde and I did it myself with Wella Color Charm! 8RG + 7R + 9NG (2:1:1) + 20 Developer. Applied on roots first - started 30 min timer.   Mixed same formula with 30 developer and brushed thru to the ends.  Rinsed when the 30min timer ended, and VIOLA! Auburn Hair, Blonde Hair, Ombre, Strawberry Blonde, Hair Today, Hair Color And Cut, Strawberry Blonde Hair Color, Strawberry Blonde Hair, Blonde Hair Color