Rylee MacKay has been dying her hair the same shade since September, yet has only just been banned from going to classes as it was deemed 'distracting'.
KSL reports that MacKay breached school policy, which states hair colour should "be within the spectrum of colour that grows naturally".
Despite having most recently dyed her hair on February 2, it wasn't until the school's vice-principal saw MacKay in the sunlight - and noted that her hair seemed to have shades of pink and purple - that action was taken.
Hurricane Middle School allowed MacKay to stay up until the end of the week, but insisted she must study in a separate room from everyone else.
Her mother Amy hopes that she can reach a compromise with the school.
She said: "I absolutely am not going to dye it brown. That is not an option.
"My daughter feels beautiful with the red hair. Changing her hair really changed her. She really blossomed."