Inverse Color Contrast Checker: Automatically Suggesting Color Adjustments that meet Contrast Requirements on the Web

Abstract

Low contrast between text and background and its effect with low vision is relatively well-understood. Many tools exist for helping web designers check contrast limits. Most of these tools identify contrast problems but give limited advice on how to rectify the problems. Moreover, website accessibility audits reveal that insufficient color contrast still is a recurring issue in practice. A framework was therefore developed that automatically proposes color adjustments to problematic text-background color pairs on web pages. These suggestions adhere to contrast requirements and are aligned with the visual design profile. The framework allows the developers to visually inspect the suggestions and amend color definitions in projects.