No Arriva buses with the fleet number 7180. Can you confirm the livery - was it a "pinky purple" front with the blue rear?

Deckers in the area with the purple/blue livery are:
T69 - LJ59 ADV - Enviro400
9995 - LJ51 OSK - Wright Gemini/Volvo B7TL
Arriva Yorkshire 704 - YJ52 CFA - Optare Spectra