Gray-blue background, like a lamp shining through the waterGray-blue background, like a lamp shining through the water
Christmas tree decorated with balloons on a red backgroundChristmas tree decorated with balloons on a red background
Internet explorer icon on a blue-purple backgroundInternet explorer icon on a blue-purple background
Bouquet of five white roses on a background of blue draped fabricBouquet of five white roses on a background of blue draped fabric
A bitten apple on a black and white background on a treeA bitten apple on a black and white background on a tree
Основной цвет, тон, на к-ром пишется картина. Задний план картины. Общие условия, обстановка, где что-н. происходит ( книжн. ). Единица степени громкости.