blue ground

The governor tried, while Rick held the plane in in a tight circle over the blue ground.

Only blue ground showed, and there was a power scoop digging out more.

The exterior part of the shield has a white ground, while the interior or center has a blue ground.

Her disk of silvery yellow swiftly glided upward amongst the big stars, on their dark blue ground.

The soffit of the arch of the Choir has a blue ground covered with multi-coloured birds and arabesques.