Outdoor landscape color flat illustration refers to a two-dimensional graphic representation of a landscape design. It is a visual tool used in architecture, landscaping, and urban planning to showcase the proposed design to clients or stakeholders. These illustrations typically feature detailed renderings of the landscape, including hardscaping elements like walkways, retaining walls, and vegetation such as trees, shrubs, and grasses. They help to convey the overall look and feel of the space before actual construction begins.