jonolave/datavizcontrast

Dataviz Contrast is a tool for visualizing the Advanced Perceptual Contrast Algorithm (APCA) lightness contrast between two colors, helping users determine the minimum pixel size required for different shapes like lines and bars. It's designed for data visualization professionals, designers, and developers who need to ensure their visual elements meet accessibility standards while maintaining readability. The tool demonstrates the smallest possible pixel sizes through background circles and uses APCA to provide more accurate contrast measurements than traditional WCAG 2 methods.