colorca

colorca is a web‑based tool that creates accessible color palettes using the HSLuv color space. Users can generate full shade ranges, tweak hue, saturation and lightness, and instantly see WCAG contrast scores. The app previews colors in UI components (buttons, cards, tables) for both light and dark themes, offers export options (CSS, JSON) and lets you save custom palettes. Ideal for designers who need compliant, harmony‑driven color systems for apps and websites.