What can affect the perception of local color in an artwork?

The perception of local color in an artwork is significantly influenced by the background colors it is juxtaposed against. Local color refers to the natural color of an object as it appears under neutral lighting conditions, unaffected by specific lighting or atmospheric conditions. However, when placed against different colors, the surrounding hues can alter the viewer's perception of that object's local color. This is due to the principles of color theory, particularly the way colors interact and influence each other visually.

For instance, a gray object may appear warmer when set against a cool blue background, while the same gray may seem cooler next to a warm orange background. This phenomenon occurs because of color transparency, contrast, and the brain's interpretative processes, making it clear that background colors play a crucial role in visual perception.

Other aspects such as texture and brushstroke techniques, while they contribute to the overall visual experience, do not directly influence the perception of local color in the same fundamental way that juxtaposition against other colors does. Lighting conditions also affect how color is perceived but are more related to changing the appearance of the local color rather than contrasting it against an adjacent hue.