Contrast ratios are an important principle in graphic composition and human perception. They refer to the difference in luminance between the lightest and deepest parts of a graphical interface. A higher contrast level means that there is a larger differentiation between light and dark areas, which can substantially influence https://gary395t4m.wikilentillas.com/1644285/understanding_the_role_of_tonal_contrast_ratios_on_optical_resolution_and_viewer_response