Ink wash is a painting technique that uses diluted ink to create varying shades of gray and black. This method allows artists to produce soft gradients and detailed textures, often resembling traditional Chinese painting. The ink is applied with brushes, and the amount of water mixed with the ink determines the darkness or lightness of the strokes. This technique is commonly used in both East Asian art and modern illustrations. Artists can achieve a wide range of effects, from delicate lines to bold washes, making it a versatile medium for expressing depth and emotion in their work.