Hair Accessories are not freely dyeable. For those of us who like to color-coordinate our look, this means our toons will be using the same colors for life unless we fork over gems for a Hair Makeover Kit.
I assume that ANet has not addressed the many calls for freely dyeable hair accessories because then they’d have to add another space to the interface, and not all toons have hair accessories.
Easy fix!
Just use the existing headgear slot. When checked, your headgear is displayed and is dyeable as normal. When UNchecked, you should have one dye channel for hair accessories.
Simple!
Build a man a fire, and he’ll be warm all day.
Set a man on fire, and he’ll be warm the rest of his life.
– Unknown Fire Elementalist