Emily Reay, a student of Trinity School in Carlisle, Cumbria, is naturally born auburn, and colors her hair which gives it a brighter shade.
The 17-year-old schoolgirl had been sporting her "red" hair over the past three years, but when she returned to the school after the Easter holidays she was advised that she is no longer allowed to attend classes until she dyes her hair with a lighter color.
"I was very angry at first," Reay told Telegraph UK.
"And then burst into tears. I've had the same color for the past three years, and nobody at school has commented on it."
Reay refused to alter her hair and insisted that her hair color is her "trademark," even though the teachers from her school said that it was inappropriate.
"Everybody knows me as that 'young ginger singer.' For me it is a confidence thing. If I had to dye my hair brown, I would lose this," Emily added.
Her parents Julie and Andy Reay went to the school to discuss the issue with sixth-form head teacher Andrew Winter. They were then told that if their daughter won't "tone down" her hair color until Monday, "she would not be allowed to continue her education," the Daily Mail reported.
The aspiring musician, whose parents are on her side, is firm with her decision and offered to pin up her hair or wear a beanie hat, but the school "said no to both."
"They had her in tears. They do not realise what her hair means to her," her mother said.
The irony is she is playing Scaramouche in the school's adaptation of We Will Rock You, which is about society suppressing people's creativity and self-expression.
Meanwhile, Sixth-form head Mr. Winter said that students should be "roles models for the rest of the school" and the school strictly implementing policies to maintain their high standards.
"All sixth form students are issued with information about what is acceptable or unacceptable at the start of the academic year. The vast majority of parents are very keen on our high standards," Mr. Winter continued.