Comparison ratios are an important principle in graphic design and human perception. They relate to the difference in luminance between the lightest and darkest parts of a graphical interface. A higher contrast level means that there is a larger disparity between bright and dim areas, which can substantially affect https://angela851h1c.jasperwiki.com/6927969/exploring_the_role_of_tonal_contrast_metrics_on_visual_clarity_and_user_awareness