My son is four and is color blind. My brother is color blind so it does run in the family. He mixes up blue and purple, although he can see some shades of purple. He also confuses green and brown, yellow and orange, and sometimes red with random colors. Anyone else have a child who is color blind and what colors do they confuse? My eye doctor told me it wasn't possible for him to confuse blue and purple so some validation would be nice! My son has trouble with the exact some colors as my brother.