If they’re non-binary, you’re going to be so anxious about using the right pronouns that you won’t even notice their hair color.
Edit: it’s a joke answer, people, in response to a joke question. It’s not made at the expense of any marginalized individual or group. The only people who would be anxious about the situation are allies; the 'phobes don’t give a shit. Untwist yer knickers.