Ombre () is a fast-moving seventeenth-century trick-taking card game for three players. Its history began in Spain around the end of the 16th century as a four-person game. It is one of the earliest card games known in Europe and by far the most classic game of its type, directly ancestral to Euchre, Boston and Solo Whist. Despite its difficult rules, complicated point score and strange foreign terms, it swept Europe in the last quarter of the 17th century, becoming Lomber in Germany, Lumbur in Austria and Ombre (originally pronounced 'umber') in England, occupying a position of prestige similar to contract bridge today.

Ombré describes the gradual blending of one color hue to another, usually moving tints and shades from light to dark. The technique is commonly seen as a surface treatment in fashion and art. During the early 21st century it became a popular feature for hair coloring, nail art, and even baking, in addition to its uses in home decorating and graphic design.