(20 Aug 2014, 5:07 pm)Robert wrote Dont think that would look very nice imo. Think it would need to stay as green unless the brand needs to be completely redesigned to suit pink (baring in mind places will need to be changed anyway as the X21 serves Spennymoor and Bishop Auckland etc).
Not forgetting that on evenings and Sundays, services 21 and X21 interwork.
Most customers will recognise the bus by its colour, so I think from that perspective, green would work well.