Designing and Developing with Accessible Color and Contrast

Visual accessibility is a fundamental pillar of great digital products, yet color contrast issues remain the most common accessibility failures on the web. Designing with accessibility in mind from the start saves development time and ensures your products are usable by people with diverse visual abilities. This text-only course guides you through the core principles of color theory, contrast requirements, and inclusive design. You will transition from guessing whether your designs are readable to confidently applying established industry standards and modern contrast models to your digital interfaces. What you'll learn: Understand foundational accessibility concepts and the core WCAG color and contrast guidelines; Analyze contrast ratios using modern industry-standard mathematical formulas and tools; Design inclusive color palettes that maintain brand identity while meeting strict compliance standards; Implement accessible contrast practices in code using CSS custom properties and semantic markup; Explore modern contrast methodologies, including the Accessible Perceptual Contrast Algorithm (APCA) for next-generation displays; Test digital interfaces for color-blindness compatibility and dark mode readability. The course starts with essential terminology and contrast definitions before moving into practical palette creation, testing workflows, and implementation strategies for modern web interfaces. Designed for beginner designers, developers, and product managers, this course requires no prior experience in accessibility or design. Start reading today to build digital experiences that are beautiful, functional, and accessible to all.