Cold colours are hues found at the blue end of the colour spectrum, including shades of blue, green, and violet, that evoke a sense of coolness or calm in an image. In photography and visual arts, using cold colours can create a tranquil, distant, or wintery atmosphere, affecting the mood and emotional impact of a composition. Photographers often balance cold colours with warm tones to enhance contrast, depth, and visual interest in their images, making the deliberate use of cold colours a key tool in creative and artistic photography.