Corrected your typo and yes, I'd say it's very much centred around that area, thanks. It's hard to tell where the cheekbones stick out from that diagram and as for colour, who knows...

The optic chiasma is also in that area, which might be linked to the visual nature of the blocks. The hypothalamus is also there.

I'd say it's distinct from the lowest point of the crown chakra but they're only an inch and a half apart.