Wannabe, don't rule it out.
speak with a dame and apply for a class one medical before throwing any money at flying. there are many different scales of colour vision defiencies protanopia and dueteranopia being the most common. In a medical they will thrust the ishihara book before you which will if like me will seem like nothing but dots.
from there you can get sent to an opthalmologist for the farnsworth lantern test. If you fail that, you can contact Avmed and arrange to conduct a field lights test where they take you to an airfield and fire the light gun at you from the tower whilst supervised by casa rep.
If you fail this test, you can still fly commercially in aust only
keep in mind though that QF have their own policies on the colour vision standard and may retest you to get their own result.
The door ain't shut till you get the tests done to find where you are placed. don't give up until every avenue afforded by
Dr Arthur Pape has been exhausted and then fight some more.
Good luck
