California IDEX Practice Exam

The choice of complementary colors of high saturation is particularly effective in a color-coding system designed for an elderly housing facility. This is because complementary colors are opposite each other on the color wheel, which makes them visually striking when placed together. The contrast created by high saturation enhances visibility and ensures that the colors stand out prominently, making it easier for individuals to differentiate between various areas or functions within the facility.

This combination not only captures attention but also helps in fostering an environment that can be navigated more easily by elderly individuals, who may experience visual impairments. The vividness of the colors aids in enhancing orientation and aesthetic appeal, promoting both functionality and comfort in the living space.

While the other options may present satisfactory design principles, they do not offer the same level of contrast and clarity that high-saturation complementary colors provide. Thus, the choice of using complementary colors of high saturation is particularly well-suited for creating a vivid and easily perceived color-coding system in an elderly housing environment.