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Bubbles under water on a blue background
Waterfall on a blue background
Underground city on a blue background
Aeroflot's hammer and sickle emblem on a blue background
Ac/dc in black-white=red-blue background
A painted gray audio cassette on a blue background
Texture cells on a blue background
A pattern of light and dark blue triangles
Background pattern of bright colors on a solid blue background
Cartoon kitten on a blue background
Bright Christmas balls on a blue background
Blue background. Color forms